Diamonds, Kimberlites, and Related Geology June 2014...THE NATURE OF DIAMONDS AND THEIR USE IN EARTH’S STUDY Bressanone-Brixen (Italian Alps) 27-31 January 2015 The school will provide

THE SHEAHAN LITERATURE SERVICE

Diamonds, Kimberlites, and Related Geology

June 2014

Highlights

The Sheahan Literature Service is dedicated to advancing research driven

mineral exploration by increasing the awareness

and availability of scientific publications and

technical resources.

Sheahan Literature Services Patricia Sheahan

Email: [email protected]

There are short-cuts to happiness, and dancing is one of them. Vicki Baum

Reminder: Kimberley Diamond Symposium Sept. 11-13th. 2014

Michelle [email protected] or Mike De Wit [email protected]

** International Diamond School ** THE NATURE OF DIAMONDS AND THEIR USE IN EARTH’S STUDY Bressanone-Brixen (Italian Alps) 27-31 January 2015 The school will provide a general overview of the most recent advances in diamond research as well as an introduction to modern techniques for diamond exploration. International organizing committee: Fabrizio Nestola (University of Padova, Italy, Graham Pearson (University of Alberta, Canada), Steven Shirey (Carnegie Institution, Washington DC, USA) Committed speakers:

Andy Davy (diamond exploration, Rio Tinto)

Bruce Kjarsgaard (diamond exploration, Geological Survey of Canada)

Daniel J. Frost (petrology, Bayerisches Geoinstitut)

Frank Brenker (mineralogy, University of Frankfürt) -

George Read (diamond exploration, Shore Gold)

Graham Pearson (geochemistry, University of Alberta)

Jeffrey W. Harris (geochemistry, mineralogy, University of Glasgow)

Matteo Alvaro (mineral physics, University of Padova)

Michael J. Walter (petrology, University of Bristol)

Paolo Nimis (petrology, University of Padova)

Pierre Cartigny (geochemistry, Institut de Physique du Globe de Paris)

Ross J. Angel (mineral physics, University of Padova)

Steven Shirey (geochemistry, Carnegie Institution Washington) For more information: www.indimedea.eu/diamond_school_2015.htm

Goldschmidt Conference June 2014 .. abstracts included Diamonds in Canada May issue - features London Mining Journal diamond supplement – features GAC/MAC Cathodluminescence short course – titles where applicable Pat Sheahan Honorary Research Associate University of British Columbia /MDRU

mailto:[email protected]

http://www.indimedea.eu/diamond_school_2015.htm

Sheahan Literature Service Diamonds Newsletter – June 2014

NEW SCIENTIFIC LITERATURE (by Source) REF # AUTHOR YEAR TITLE SOURCE REGION/LOCATION KEYWORDS

Page 1 (Scientific by Source) © Sheahan Literature Service. Printed in Canada.

1 D1406-01 Huang, M-X.,

Yang, J-J., Powell, R., Mo, X.

2014 High pressure metamorphism of serpentinzed chromitite at Luobusha ( southern Tibet).

American Journal of Science, Vol. 314, pp. 400-433.

Asia, Tibet

Diamond and coesite

2 D1406-02 Griffin, W.L.,

Pearson, N.J., Andersen, T., Jackson, S.E., O'Reilly, S.Y., Zhang, M.

2014 Sources of cratonic metasomatic fluids: In-situ LA-MC-ICPMS analysis of Sr, Nd and Pb isotopes in Lima from the Jagersfontein kimberlite.

American Journal of Science, Vol. 314, pp. 435-461.

Africa, South Africa

Deposit - Jagersfontein

3 D1406-03 Keshav, S.,

Gudfinnsson, G.H.

2014 Melting phase equilibria od model carbonated peridotite from 8 to 12 Gpa in the system CaO-MgOAl2O3-SiO2-CO2 and kimberlitic liquids in the Earth's upper mantle.

American Mineralogist, Vol. 99, pp. 1119-1126.

Mantle

Melting

4 D1406-04 Prencipe, M.,

Bruno, M., Nestola, F., De La Pierre, M., Nimis, P.

2014 Toward an accurate ab initio estimation of compressibility and thermal expansion of diamond in the (0, 3000K) temperature and (0,30 Gpa) pressure ranges, at the hybrid HF/DFT theoretical level.


Technology

UHP

5 D1406-05 Mysen, B.,

Tomita, T., Ohtani, E., Suzuki, A.

2014 Speciation of and D/H partioning between fluids and melts in silicate D-O-H-C-N systems determined in-situ at upper mantle temperatures, pressures, and redox conditions.


Mantle

Melting

6 D1406-06 Perlinelli, C.,

Bosi, F., Andreozzi, G.B., Conte, A.M., Armienti, P.

Geothermometric study of Cr-spinels of peridotite mantle xenoliths from northern Victoria Land ( Antarctica).


Antarctica

Spinels

7 D1406-07 Bain Group 2013 The global diamond

report 2013 - journey through the value chain.

Bain Group, Dec. 13, 65p.

Global

Overview - industry

8 D1406-08 Presser, J.L.B.,

Bulanova, G.P., Smith, C.B.

2014 Diamantes de Capiibary, DPTO. San Pedro, Paraguay.

Bol. Mus. Nac. Hist. Nat. Paraguay *** Spanish copy available, Vol. 17,

South America, Paraguay

Project - Capiibary




2, pp. 5-23.

1 D1406-09 Bulanova, G.P.,

Wiggers de Vries, D.F., Pearson, D.G., Beard, A., Mikhail, S., Smelov, A.P., Davies, G.R.

2014 An eclogitic diamond from Mir pipe ( Yakutia) recording two growth events from different isotopic sources.

Chemical Geology, in press available

Russia

Deposit - Mir

2 D1406-10 Su, B-X., Zhang,

H-F, Deloule, E., Vigier, N., Hu, Y., Tang, Y-J., Xiao, Y., Sakyi, P.A.

2014 Distinguishing silicate and carbonatite mantle metasomatism by using lithium and its isotopes.

Chemical Geology, in press available

China

Hannuoba

3 D1406-11 Stepanov, A.S.,

Hermann, J., Korsakov, A.V.,, Rubatto, D.

2014 Geochemistry of ultrahigh pressure anatexis: fractionation of elements in the Kokchetav gneisses during melting at diamond facies conditions.

Contributions to Mineralogy and Petrology, Vol. 67, 25p.

Russia

UHP

4 D1406-12 Diamonds in

Canada

2014 Stornoway lands $ 944 million financing for Renard; Lucara's Karowe proves to be a gem.

Diamonds in Canada, May p. 20

Canada, Quebec

Deposit - Renard


Canada

2014 Lucara's Karowe proves to be a gem.

Diamonds in Canada, May p. 21

Africa, Botswana

Deposit - Karowe

6 D1406-14 Saywell, T. 2014 Gahcho Kue takes

shape.. Diamonds in Canada, May pp. 12-14.

Canada, Northwest Territories

Deposit - Gahcho Kue


Canada

2014 Brief overview of companies.

Diamonds in Canada, May pp. 15-19.

Global

Companies - brief review

8 D1406-16 Zimnisky, P. 2014 A snapshot of global

production.The state of the global rough diamond supply in 2014.

Diamonds in Canada, May pp. 4-7.

Global

Diamond production

9 D1406-17 Hiyate, A. 2014 Dominion Diamond

banks on Ekati. Diamond pureplay…

Diamonds in Canada, May pp. 8-11, 22.


Deposit - Ekati

10 D1406-18 Yudin, D.S.,

Tomilenko, A.A., 2014 The age of the

Udachnaya-East Doklady Earth Sciences, Vol. 455, 1, pp. 288-290.

Russia

Deposit - Udachnaya




Travin, A.V., Agashev, A.M., Pokhilenko, N.P., Orihashi, yu.

kimberlite: U/Pb and 40 Ar/39Ar data.

1 D1406-19 Kuzyura, A.V.,

Litvin, Yu.A., Vasilev, P.G., Jeffries, T., Wall, F.

2014 Partitioning of rare elements between diamond forming melts and minerals of the peridotite-carbonatite system.

Doklady Earth Sciences, Vol. 455, 2, pp. 419-424.

Technology

Physicochemical experiments

2 D1406-20 Jagoutz, O. 2014 Arc crustal

differentiation mechanisms.

Earth and Planetary Science Letters, Vol. 396, pp. 267-277.

Mantle

Geodynamics

3 D1406-21 Nebel, O.,

Campbell, I.H., Sossi, P.A., Van

2014 Hafnium and iron isotopes in early Archean komatiites record a plume driven convection cycle in the Hadean Earth.


Mantle

Convection

4 D1406-22 Ohuchi, T.,

Fujino, K., Kawazoe, T., Irifune, T.

2014 Crystallographic preferred orientation of wadsleyite and ringwoodite: effects of phase transformation and water on seismic anisotropy in the mantle transition zone.


Mantle

Mineral chemistry

5 D1406-23 Condamine, P.,

Medard, E. 2014 Experimental melting of

phlogopite bearing mantle at 1 Gpa: implications for potassic magmatism.


Mantle

Magmatism

6 D1406-24 Dauphas, N.,

Roskosz, M., Alp, E.E., Neuville, D.R., Hu, M.Y., Sio, C.K., Tissot, F.L.H., Zhao, J., Tissandier, L., Medard, E., Cordier, C.

2014 Magma redox and structural controls on iron isotope variations in Earth's mantle and crust.


Mantle

Redox

7 D1406-25 Jacob, D.E.,

Dobrzhinetskaya, L., Wirth, R.

2014 New insight into polycrystalline diamond genesis from modern nanoanalytical techniques.

Earth Science Reviews, in press available

Technology

Remobilization, melt, redox

8 D1406-26 Du Vanage, G. 2014 Debmar Pacific makes

port of call in Cape Engineering and Mining Journaj, May pp. 42-44

Africa, Namibia

Namdeb deep sea mining




Town. Ship being repaired and outfitted for another 30 month stint at sea.

1 D1406-27 Edwards, P.,

Lee, M. 2014 Cathodluminescence

hyperspectral imaging in geoscience.

GAC/MAC short Course, May

Technology

Cathodluminescence

2 D1406-28 Mariano, A.N.,

Mariano, A.Jr. 2014 Cathodluminescence as

a tool in exploration geology.

GAC/MAC short Course, May

Technology

Cathodluminescence

3 D1406-29 Robertson, M. 2014 Cathodluminescence

instrumentation. GAC/MAC short Course, May

Technology

Cathodluminescence

4 D1406-30 Mitchell, R.H. 2014 Cathodluminescence of

apatite. GAC/MAC short Course, May, pages unknown

Technology

Cathodluminescence

5 D1406-31 Hsu, T., Lucas,

A., Qiu, Z., Li, M.,Yu, Q.

2014 Exploring the Chinese gem and jewelry industry.

Gems & Gemology, Vol. 50, 1, Spring, pp. 2-29.

China

Gemstones - economics

6 D1406-32 D'Haenens-

Johansson, U.F.S., Soe Moe, K., Johnson, P., Yan Wong, S., Lu, R., Wang, W.

2014 Near-colorless HPHT synthetic diamonds from AOTC group.

Gems & Gemology, Vol. 50, 1, Spring, pp. 30-45.

Technology

Synthetic diamonds

7 D1406-33 Moreira, M. 2013 Noble gas constraints

on the origin and evolution of Earth's volatiles.

Geochemical Perspectives, Vol. 2, 2, pp. 229-403.

Mantle

Noble gas chemistry

8 D1406-34 Arndt, N.T. 2013 Formation and evolution

of the continental crust. Geochemical Perspectives, Vol. 2, 3, pp. 405-533.

Mantle

Geodynamics

9 D1406-35 Yardley, B.W.D.,

Bodnar, R.J. 2014 Fluids in the continental

crust Geochemical Perspectives, Vol. 3, 1, pp. 1-127.

Mantle

Chemistry

10 D1406-36 Doucet, L.S.,

Peslier, A.H., Ionov, D.A., Brandon, A.D., Golovin, A.V., Goncharov, A.G., Ashchepkov, I.V.

2014 High water contents in the Siberian cratonic mantle linked to metasomatism: an FTIR study of Udachnaya peridotite xenoliths.

Geochimica et Cosmochimica Acta, in press available

Russia, Siberia

Deposit - Udachnaya

11 D1406-37 Palot, M.,

Pearson, D.G., Stern, R.A.,

2014 Isotopic constraints on the nature and circulation of deep


Africa, Guinea

Deposit - Kankan




Stachel, T., Harris, J.W.

mantle C-H-O-N fluids: Carbon and nitrogen systematics within ultra-deep diamonds from Kankan ( Guinea).

1 D1406-38 Vasyukova, O.,

Williams-Jones, A.E.

2014 Fluoride-silicate melt immiscibility and its role in REE ore formation: evidence from the Strange Lake rare metal deposit, Quebec-Labrador, Canada.


Canada, Quebec

Deposit - Strange Lake

2 D1406-39 Armytage,

R.M.G., Brandon, A.D., Peslier, A.H., Lapen, T.J.

2014 Osmium isotope evidence for Early to Middle Proterozoic mantle lithosphere stabilization and concomittant production of juvenile crust in Dish Hill, CA peridotite xenoliths.


USA, California

Xenolith

3 D1406-40 Cawood, P.A. 2014 Earth's middle age. Geology, Vol. 42, 6, pp.

503-506. Mantle

Geochronology

4 D1406-41 Northern

Territory Australia

2014 Geology and Mineral Resources of the Northern Territory.. Chapter 3, 1/2 column on Merlin and Timber Creek deposits.

Geology and Mineral Resources of the Northern Territory, 42 chapters ( 1/2 page in Chapter 3 on commodities - diamonds

Australia

Deposit - Merlin, Timber Creek

5 D1406-42 Tang, X., Ntam,

M.C., Dong, J., Rainey, E.S.G., Kavner, A.

2014 The thermal conductivity of Earth's lower mantle.

Geophysical Research Letters, April 16, pp. 2746-2742.

Mantle

Geothermometry

6 D1406-43 Van den Berg,

A.P., Yuen, D.A. 2014 Is the lower mantle

rheology Newtonian today?

Geophysical Research Letters, Vol. 23, 16, pp. 2033-20136.

Mantle

Rheology

7 D1406-44 Nauheimer, G.,

Fradkov, A.S., Neugebaurer, H.J.

2014 Mantle convection behaviour with segregation in the core-mantle boundary.

Geophysical Research Letters, Vol. 23, 16, pp. 2061-2064.

Mantle

Convection

8 D1406-45 Foster, D.A.,

Goscombe, B.D., Newstead, B., Mapani, B., Mueller, P.A., Gregory, L.C., Muvangua, E.

2014 U-Pb age and Lu-Hf isotopic data of detrital zircons from the Neoproterozoic Damara sequence: implications for Congo and Kalahari before Gondwana.

Gondwana Research, in press available

Africa

Geochronology

9 D1406-46 Idex Magazine 2014 Rough markets sizzles

again. Idex Magazine, No. 288, April pp. 100-101.

Global

Markets




1 D1406-47 Idex Magazine 2014 Are diamond industry

umbrella bodies keeping members dry?

Idex Magazine, No. 288, April pp. 24-25.

Global

Markets - Networking

2 D1406-48 Matton, G.,

Jebrak, M. 2014 The "eye of Africa" (

Richat dome, Mauritania): an isolated Cretaceous alkaline-hydrothermal complex.

Journal of African Earth Sciences, in press available

Africa, Mauritania

Alkaline Richat

3 D1406-49 Ruitiistenmake,

T. 2014 Geophysical

characteristics of Aswa shear, Nagasongola discontinuity and ring dyke complex in Uganda.

Journal of African Earth Sciences, Vol. 93, pp. 23-41.

Africa, Uganda

Ring dyke

4 D1406-50 Reimold, W.U.,

Koeberl, C. 2014 Impact structures in

Africa: a review. Journal of African Earth Sciences, Vol. 93, pp. 57-175.

Africa

Impacts - review

5 D1406-51 Martin, R.F.,

Randrianandraisana, A., Boulvais, P.

2014 Ampandrandava and similar phlogopite deposits in southern Madagascar: derivation from a silicocarbonatitic melt of crustal origin.


Africa, Madagascar

Carbonatites

6 D1406-52 Reeves, C. 2014 The position of

Madagascar within Gondwana and its movements during Gondwana dispersal.


Africa, Madagascar

Tectonics

7 D1406-53 Cheng, Z.,

Zhang, Z., Santosh, M., Hou, T., Zhang, D.

2014 Carbonate and silicate rich globules in the kimberlitic rocks of northwestern Tarim large igneous province, NW China: evidence for carbonated mantle source.

Journal of Asian Earth Science, in press available

China

Petrology

8 D1406-54 Batki, A., Pal-

Molnar, E., Dobosi, G., Skelton, A.

2014 Petrogenetic significance of ocellar camptonite dykes in the Ditrau alkaline Massif, Romania.

Lithos, in press available Europe, Romania

Camptonites

9 D1406-55 Abdelfadil, K.M.,

Romer, R.L., Glodny, J.

2014 Mantle wedge metasomatism revealed by Li isotopes in orogenic lamprophyres. ( Bohemian Massif)

Lithos, Vol. 196-197, pp. 14-26.

Europe

Lamprophyres

10 D1406-56 Pla Cid, J.,

Nardi, L.V.S., 2014 Acid compositions in a

veined lower mantle, as Lithos, Vol. 196-197, pp. 42-53.

South America, Brazil

Deposit - Juina




Pla Cid, C., Gisbert, P.E., Balzaretti, N.M.

indicated by inclusions of ( K, Na)- Hollandite + SiO2 in diamonds.

1 D1406-57 Chen, Y-X,

Zheng, Y-F., Gao, X-Y., Hu, Z.

2014 Multiphase solid inclusions in zoisite bearing eclogite: evidence for partial melting of ultrahigh pressure metamorphic rocks during continental collision.

Lithos, Vol. 200-201, pp. 1-21.

China

Sulu UHP

2 D1406-58 London Mining

Journal 2014 Chart/list of projects,

production figures US$ and ownership

London Mining Journal Diamond Supplement, Supplement May p.8

Global

List of projects


Journal 2014 Testing times: Marange

may not be the world's largest diamond producer for much longer.

London Mining Journal Diamond Supplement, Supplement May pp. 10-11.

Africa, Zimbabwe

Deposit - Marange


Journal 2014 Rolling stones… with

demand for diamonds set to outstrip supply, the bulls are out in force.

London Mining Journal Diamond Supplement, Supplement May pp. 2,3,5,9,10.

Global

Diamond markets

5 D1406-61 Hirose, K., 2014 Deep earth mineralogy

revealed by ultrahigh pressure experiments.

Mineralogical Magazine, Vol. 78, 2, pp. 437-446.

Mantle

UHP

6 D1406-62 Miller, C.E.,

Kopylova, M., Smith, E.

2014 Mineral inclusions in fibrous diamonds: constraints on cratonic mantle refertilization and diamond formation.

Mineralogy and Petrology, Vol. 108, 3, pp. 317-331.

Canada, Ontario, Northwest Territories

Wawa and Diavik

7 D1406-63 Nguyen Thi, T.,

Wada, H., Ishikawa, T., Shimano, T.

2014 Geochemistry and petrogenesis of carbonatites from South Nam Xe, Lai Chau area, northwest Vietnam.

Mineralogy and Petrology, Vol. 108, 3, pp. 371-390.

Asia, Vietnam

Carbonatites

8 D1406-64 Madugalla,

T.B.N.S., Pitawala, H.M.T.G.A., Karunaratne, D.G.G.P.

2014 Use of carbonatites in the production of precipitated calcium carbonate: a case study from Eppawala, Sri Lanka.

Natural Resources Research, Vol. 23, 2, June pp. 217-230.

Asia, Sri Lanka

Carbonatites

9 D1406-65 Evans, R. 2014 Making the earth move. Nature, Vol. 509, pp. 40-

41. Mantle

Plate tectonics

10 D1406-66 Deschamps, F. 2014 Geodynamics: mantle

plume chemical diversity.

Nature Geoscience, Vol. 7, pp. 330-331.

Mantle

Geochemistry




1 D1406-67 Li, M.,

McNamara, A.K., Garnero, E.J.

2014 Chemical complexity of hotspots caused by cycling oceanic crust through mantle reservoirs.

Nature Geoscience, Vol. 7, pp. 366-370.

Mantle

Hotspots

2 D1406-68 Partnership

Africa Canada

2014 All that glitters is not gold: Dubai, Congo and the illicit trade of conflict minerals.

Partnership Africa, May 27, 8p.

Africa, Democratic Republic of Congo

Legal - conflict

3 D1406-69 Solopova, N.A. 2014 Crystallization of

diamond in carbonate melts in experiments under 5.5 - 84.0 Gpa pressure. IN RUSSIAN

Phd thesis Lomonosov State University and Institute of Experimental Mineralogy ** IN Russian ( courtesy of Kaminsky), 25p. Available pdf

Technology

Diamond crystallography

4 D1406-70 Chakhmouradia

n, A.R., Woodward, P.M.

2014 Celebrating 175 years of perovskite research: a tribute to Roger H. Mitchell.

Physics and Chemistry of Minerals, 6p. In press available

Technology

Perovskites

5 D1406-71 Martins, T.,

Chakhmouradian, A.R., Medici, L.

2014 Perovskite alteration in kimberlites and carbonatites: the role of kassite, CaTi204(OH)2

Physics and Chemistry of Minerals, in press available

Perovskites

6 D1406-72 Shimojuku, A.,

Boujibar, A., Yamazaki, D.

2014 Growth of ringwoodite reaction rims from MgSiO3 perovskite and periclase at 22.5 Gpa and 1,800 C.

Physics and Chemistry of Minerals, in press available

Technology

Perovskites

7 D1406-73 Chheda, T.D.,

Mookherjee, M., Mainprice, D., Dos Santos, A.M., Molaison, J.J., Chantel, J., Manthilake, G., Bassett, W.A.

2014 Structure and elasticity of phlogopite under compression: geophysical implications.

Physics of the Earth and Planetary Interiors, in press available

Mantle

Geophysics

8 D1406-74 Li, B.,

Liebermann, R.C.

2014 Study of the Earth's interior using measurements of sound velocities in minerals by ultrasonic interferometry.

Physics of the Earth and Planetary Interiors, in press available

Mantle

Spectroscopy

9 D1406-75 Nikitina, L. P.

Korolev, N.M., Zinchenko, V.N., Felix, J.T.

2014 Eclogites from the upper mantle beneath the Kasai Craton ( western Africa): petrography, whole rock

Precambrian Research, in press available

Africa,

Eclogites




geochemistry and U-Pb zircon age.

1 D1406-76 Mysen, B. 2013 Water-melt interaction

in hydrous magmatic systems at high temperature and pressure.

Progress Earth and Planetary Science, Vol. 4, 1. free www.progearthplanetsci.com

Mantle

Magmatism

2 D1406-77 Zhang, L.,

Meng, Y., Yang, W/. Wang, L., Mao, W.L., Zeng, Q-S., Jeong, J.S., Wagner, A.J., Mkhoyan, K.A., Liu, W., Xu, R., Mao, H-K.,

2014 Disproportionation of (Mg,Fe) SiO3 perovskite in Earth's deep lower mantle.

Science, Vol. 344, no. 6186, pp. 877-882.

Mantle

Perovskites

3 D1406-78 Andrault. D.,

Pesce, G., Ali Bouhifd, M., Bolfan-Casanova, N., Henot, J-M., Mezouar, M.

2014 Melting of basalt at the core-mantle boundary.

Science, Vol. 344, no. 6186, pp. 892-895.

Mantle

Subduction

4 D1406-79 Paul, J.D.,

Roberts, G.G. 2014 The African landscape

through space and time. Cenozoic epirogeny … convective

Tectonics, in press available

Africa

River profiles

5 D1406-80 Friedman, S.A.,

Feinberg, J.M., Ferre, E.C., Demory, F., Martin-Hernandez, F., Condor, J.A., Rochette, P.

2014 Craton vs rift uppermost mantle contributions to magnetic anomalies in the United States interior.

Tectonophysics, in press available

USA, Montana, New Mexico, Arizona

Geophysics - magnetics

6 D1406-81 Kirby, J.F. 2014 Estimation of the

effective elastic thickness of the lithosphere using inverse spectral methods: the state of the art.


Mantle

Plate tectonics, gravity

7 D1406-82 Tesauro, M.,

Kaban, M.K., Mooney, W.D., Cloetingh, S.

2014 NACr14: a 3D model for the crustal structure of the North American continent.


North America, USA

Geophysics - seismics

8 D1406-83 Lock, N. 2014 Alexkor and the

Richtersveld land claim - a retrospective

Toronto Geological Discussion Group, May 13, 1/4p. Abstract


Alexkor - legal history




diamond mineral property.

1 D1406-84 Smith, E. 2014 Nature's secret recipe

for gem-quality diamonds.

VKC Meeting, May 28, 1p. Abstract

Technology

Diamond genesis

2 D1406-85 Adriao, A.,

Conceicao, R., Carniel, L., Gervasoni, F.

2014 Chemical and isotopic evidences of mantle source heterogeneity in the RosaRio do Sul kimberlite province.

www.goldschmidt.info, 1p. Abstract


Deposit - RosaRio do Sul

3 D1406-86 Ashchepkov, I.,

Remirs, L., Ntaflos, T., Vladykin, N., Logvinova, A., Travin, A., Yudin D., Karpenko, K., Makovchuk, I., Palessky, S., Salikhov, R.

2014 Evolution of mantle column of pipe Sytykanskaya, Yakutia kimberlite.


Russia, Yakutia

Deposit - Sytykanskaya

4 D1406-87 Asimow, P.,

Hernlund, J., Karki, B.

2014 Melting and melt properties in the deep Earth.


Mantle

Melting

5 D1406-88 Basu, S., Jones,

A. 2014 Helium 3 stored in

mantle diamond periodically mobilised by deep carbonate melts?


Mantle

Melting

6 D1406-89 Hirose, K.,

McDonough, B., McNamara, A.

2014 Chemical composition of Earth's mantle.


Mantle

Mineral chemistry

7 D1406-90 Huang, F.,

Sverjensky, D. 2014 Speciation and sources

of aqueous fluids in diamond fluid inclusions.


Technology

Diamond inclusions

8 D1406-91 Kagi, H.,

Ishibashi, H., Zedgenizov, D., Shatsky, V., Ragozin, A.

2014 Growth condition of super-deep diamonds inferred from carbon isotopic compositions and chemical compositions of nano-inclusions.


Mantle

Mineral chemistry

9 D1406-92 Kaminsky, F.,

Wirth, R. 2014 New postspinel

orthorhombic mineral phases and other new orthorhombic minerals as lower mantle inclusions in diamonds.


Mantle

Mineralogy

10




D1406-93 Pearson, D.G., Brenker, F., Nestola, F., McNeil, J., Nasdala, L., Hutchison, M., Mateev, S., Mather, K., Silversmit, G., Schmitz, S., Vekemans, B., Vinczw=e, L.

2014 A hydrous mantle transition zone indicated by ringwoodite included within diamond.


Mantle

Diamond inclusion

1 D1406-94 Petts, D., Stern,

R., Stachel, T., Chacko, T., Heaman, L.

2014 A nitrogen isotope fractionation factor between diamond and fluid derived from detailed SIMS analysis of an eclogitic diamond.


Technology

Geochronology

2 D1406-95 Qin, S., Qiu, Z.,

Lu, T., Chen, H., Sun, Y., Wang, Q., Zhang, J., Lil, L.

2014 Inclusions of diamonds from Hunan, the Yangtze Craton and their revealing for forming environment.


China

Diamond genesis

3 D1406-96 Russell, K.,

Brett, C., Jones, T., Andrews, G., Porritt L.

2014 Kimberlite ascent. www.goldschmidt.info, 1p. Abstract

Mantle

Kimberlite genesis

4 D1406-97 Shiry, S., Hauri,

E., Thomson, A., Bulanova, G., Smith, C., Kohn, S., Walter, M.

2014 Water content of stishovite, majorite and perovskite inclusions in Juina superdeep diamonds.



Deposit - Juina

5 D1406-98 Skvortsova, V.,

Samoylovich, M., Belyanin, A.

2014 Phase composition of the contact surfaces of monocrystalline diamond and kimberlite.


Technology

Mineralogy

6 D1406-99 Skvortsova, V.,

Samoylovich, M., Belyanin, A.

2014 Phase composition of the contact surfaces of polycrystalline diamond and kimberlite.


Technology

Mineralogy

7 D1406-100

Stagno, V., Sverjensky, D., Sharar, A.

2014 Diamonds, carbonate melts and carbon-bearing aqueous fluids in eclogites.


Mantle

Eclogites

8 D1406-101

Sverjensky, D. 2014 Diamond formation by acidity changes during fluid rock interactions in the upper mantle.


Mantle

Diamond genesis

9




D1406-102

Tappe, S., Kjarsgaard, B., Aulbach, S.

2014 Mantle carbon mobilization during supercontinent break up: evidence from kimberlites and their diamonds.


Mantle

Carbon

1 D1406-103

Vasilyev, P., Yaxley, G., Hermann, J., O'Neill, H., Berry, A.

2014 Experimental investigation of the effect of oxygen fugacity on diamond versus carbonate in carbon-bearing eclogites during deep subduction.


Mantle

Subduction

2 D1406-104

Wood, B., Fei, Y., Sharar, A., Corgne, A., Bouhifd, A.

2014 Formation and evolution and composition of Earth's core.


Mantle

Core

3 D1406-105

Woodhead, J., Hergt, J., Phillips, D.

2014 Carbonate metasomatism at the continental scale: insights from kimberlite hosted zircon megacrysts.


Mantle

Metasomatism

4 D1406-106

Zhang, Z., Fedortchuk, Y., Hanley, J.

2014 Experimental constraints of diamond destructive fluids in kimberlite magma and in the sub-cratonic lithosphere.


Mantle

Kimberlite magmatism

5


INDUSTRY NEWS (by Source) REF # AUTHOR YEAR TITLE SOURCE REGION/LOCATION KEYWORDS

Page 1 (Industry News) © Sheahan Literature Service. Printed in Canada.

1 D1406-107

Allafrica

2014 Diamond firms told of their fate.

Allafrica.com, April 24, 1/4p.

Africa, Zimbabwe

News item - Marange

2 D1406-108

Allafrica

2014 Govt orders audit of diamond mining firms, arrests looming.


Africa, Zimbabwe

News item - legal

3 D1406-109

Allafrica

2014 Catoca invests in discovery of new diamond reserves.


Africa, Angola

News item - Catoca

4 D1406-110

Allafrica

2014 Govt gazettes diamond regulations.

Allafrica.com, May 12, 1/4p.

Africa, Zimbabwe

News item - legal

5 D1406-111

Allafrica

2014 Zim in move to axe gem middlemen ( Dubai, First Element)

Allafrica.com, May 2, 1p. Africa, Zimbabwe

News item - legal

6 D1406-112

Angola Press

2014 Angola and Mozambique sign memorandum in geological sector.

Angola Press, May 20, 1/2p.

Africa, Angola, Mozambique

News item - Endiama

7 D1406-113

Bain

2013 The global diamond report 2013.. Journey through the value chain.

Bain, 65p. Released Dec. 13

Global

News item - Bain report

8 D1406-114

Bloomberg News

2014 De Beers bets on marine gem-mining plan to extend Namdeb's life. Mining in mid-waters .

Bloomberg News, April 30, 1p.

Africa, Namibia

News item - Namdeb

9 D1406-115

Botswana Diamonds plc.

2014 Positive results from initial analysis of exploration on PL117 in Orapa - two drill targets identified.. Potential for new kimberlites.

Botswana Diamonds plc., April 30, 1p.

Africa, Botswana

News item - press release

10 D1406-116

Botswana Diamonds plc.

2014 New licences awarded in Orapa region of Botswana. ( ongoing JV with Alrosa area)

Botswana Diamonds plc., May 27, 1p.

Africa, Botswana


11 D1406-117

Brazil Minerals, Inc.

2014 Raises US $ 500,000 from polished diamonds transactions.

Brazil Minerals, Inc., May 13, 1p.



12 D1406-118

Brazil Minerals, Inc.

2014 Reports strong growth in cash flow from operations in Q1 2014. Duas Barras

Brazil Minerals, Inc., May 21, 2p.



13




D1406-119

Canadian International Minerals Inc.

2014 Acquires 100% interest in Reindeer River Syndicate in Saskatchewan Pikoo diamond play.

Canadian International Minerals Inc., May 5, 1p.

Canada, Saskatchewan


1 D1406-120

Chalice Gold Mines Limited

2014 Quarterly activities report - one paragraph on Webb project.

Chalice Gold Mines Limited, April 30, 1p.

Australia


2 D1406-121

Creamers Mining Weekly

2014 Lace diamond sales breach 7,000 cts

Creamers Mining Weekly, April 30, 1/2p.


News item - DiamondCorp

3 D1406-122


2014 Gem Diamonds sale prices hike 70%.

Creamers Mining Weekly, May 12, 1/2p.

Africa, Lesotho

News item - Gem Diamonds

4 D1406-123


2014 Paragon increases interest in Lemphane to 100% ( Matekane)


Africa, Lesotho

News item - Paragon

5 D1406-124


2014 Stellar reports 12% hike in resource grade at Tongo.


Africa, Sierra Leone

News item - Stellar

6 D1406-125


2014 Dominion Diamond Corp lifts Q1 sales, ahead of targets.



News item - Dominion

7 D1406-126


2014 Dominion Diamond to launch revitalized diamond hallmark programme.



News item - Dominion

8 D1406-127


2014 Lucara Diamond Corp recovers 13 heavyweight precious gems. Karowe


Africa, Botswana

News item - Lucara

9 D1406-128


2014 Pangolin recovers precious gems in Botswana. Magi


Africa. Botswana

News item - Pangolin

10 D1406-129


2014 Stornoway stock on the rise after closing two financings.


Canada, Quebec

News item - Stornoway

11 D1406-130


2014 Rockwell Diamonds eyeing consolidation opportunities.



News item - Rockwell

12




D1406-131


2014 Trans Hex expects to swing to FY loss, warns of earnings crunch.

Creamers Mining Weekly, May 26, 1p.

Africa, South Africa, Angola

News item - Trans Hex

1 D1406-132


2014 Gemfields emerald auction yields $ 13.5 m revenue ( from Brazil) next one ( lower quality material from Kagem operation in Zambia.


South America, Brazil, Africa, Zambia

News item - Gemfields

2 D1406-133

De Beers

2014 The De Beers Group of companies to sponsor 2nd Africa Youth Games ( Debswana and DTC Botswana)

De Beers, May 15, 1p. Africa, Botswana


3 D1406-134

DiamondCorp plc.

2014 Lace mine project update.

DiamondCorp plc., April 30, 1p.



4 D1406-135

Diamond Investing News

2014 Foul play in Ukraine could hurt Belgian diamond industry. ( Alrosa)

diamondinvestingnews.com, May 27, 2p.

Europe, Belgium

News item - legal

5 D1406-136

Diamonds.net

2014 Zimbabwe may allow only two miners in the Marange.

Diamonds.net, April 24, 1p.

Africa, Zimbabwe

News item - legal

6 D1406-137

Diamonds.net

2014 Revenue from Dubai's Marange tender finally reaches Zimbabwe.

Diamonds.net, April 25, 1/4p.

Africa, Zimbabwe

News item - Marange

7 D1406-138

Diamonds.net

2014 Zimbabwe's National army owned Glass Finish Investments has reported received $ 40 million


Africa, Zimbabwe

News item - Glass Finish

8 D1406-139

Diamonds.net

2014 Firestone extends Liqhobong mine lease.


Africa, Lesotho

News item - Firestone

9 D1406-140

Diamonds.net

2014 UN lifts diamond ban on Cote d'Ivoire.


Africa, Ivory Coast

News item - legal

10 D1406-141

Diamonds.net

2014 Gye Nyame loses Marange license. ( Ghanian firm)


Africa, Zimbabwe

News item - Gye Nyame

11 D1406-142

Diamonds.net

2014 Botswana Diamonds identifies potential for new kimberlites on


Africa, Botswana

News item - Botswana Diamonds




PL117

1 D1406-143

Diamonds.net

2014 Investigating a new treatment - low pressure-high temperature is the latest development in diamond treatments. HPHT and Type II diamonds…now LPHT on larger quantity of diamonds. ( Colour enhancement)

Diamonds.net, May 1, 2p.

Technology

News item - LPHT - synthetics

2 D1406-144

Diamonds.net

2014 Paragon prepares for first stage development at Lemphane.

Diamonds.net, May 12, 1/4p.

Africa, Lesotho

News item - Paragon

3 D1406-145

Diamonds.net

2014 Kimberley Diamonds downgrades 2014 guidance.


Australia

News item - Kimberley Diamonds

4 D1406-146

Diamonds.net

2014 Sarine's 1 Q revenue + 21%, profit + 13%


Technology

News item - Sarine

5 D1406-147

Diamonds.net

2014 Zimbabwe orders diamond miners to sell gems through Reserve Bank.


Africa, Zimbabwe

News item - legal

6 D1406-148

Diamonds.net

2014 Rio Tinto showcases Oculus Rift technology to global diamond industry. Virtual journey into Diavik mine.



News item - Rio Tinto

7 D1406-149

Diamonds.net

2014 Trans Hex anticipates decline in profit, revenue for 2014.


Africa, South Africa, Angola

News item - Trans Hex

8 D1406-150

Diamonds.net

2014 Gemfields 3 Q Kagem production -45%.


Africa, Zambia


9 D1406-151

Diamonds.net

2014 How Rio Tinto aims big guns at a diamond tycoon and his Brazilian rival. Beny Steinmetz …. Vale


Africa, Guinea

News item - Rio Tinto

10 D1406-152

Diamonds.net

2014 A synthetic called CVD. The advantage of CVD over HPHT grown diamonds. ( no nitrogen or metallics)


Technology

News item - CVD




1 D1406-153

Diamonds.net

2014 Harare prepares to open diamond polishing centre.


Africa, Zimbabwe

News item - polishing

2 D1406-154

Firestone Diamonds Plc

2014 Financing agreements entered into for the Liqhobong diamond mine.

Firestone Diamonds Plc, May 27, 3p.

Africa, Lesotho


3 D1406-155

GGL Resources Corporation

2014 GGL Resources Corp. signs agreement with Proxima Diamonds Corp. Target Area Database.

GGL Resources Corporation, May 12, 1p.



4 D1406-156

Globe & Mail

2014 Colourful bidding: a trend in diamonds.

Globe & Mail, May 15, 1p.

Global

News item - diamonds notable

5 D1406-157

Idex Memo

2014 An FL, 2- carat diamond for $ 25? Wrong! Debunking NY Times article

Idex Online, May 1, 3p. Global

News item - economics

6 D1406-158

Idex Online

2014 Gem Diamonds posts 39% jump in diamonds recovered from Letseng in Q1. 26,055 carats

Idex Online, May 12, 1/4p.

Africa, Lesotho


7 D1406-159

Idex Memo

2014 More than just a canal, Panama aiming to be diamond hub.

Idex Online, May 14, 3p. Global

News item - Panama Diamond Exchange

8 D1406-160

Idex Memo

2014 If the carat tax is on the table, will Belgium legislate?

Idex Online, May 22, 3p. Europe, Belgium

News item - taxes

9 D1406-161

Kennady Diamonds Inc.

2014 Kennady Diamonds advances Kelvin-Faraday kimberlite drilling.

Kennady Diamonds Inc., April 29, 2p.



10 D1406-162

Kennady Diamonds Inc.

2014 Kennady Diamonds announces successful completion of Kennady North drill program.

Kennady Diamonds Inc., May 27, 3p.



11 D1406-163

Kimberley Diamonds Limited

2014 Conclusion of pricing negotiations for fancy yellow production. Tiffany ( Laurelton Diamonds Inc) Ellendale mine production.

Kimberley Diamonds Limited, May 12, 1p.

Australia

News item - Kimberley Diamonds

12




D1406-164

Lucara Diamond Corporation

2014 Lucara publishes addendum to prospectus.

Lucara Diamond Corporation, May 22, 1p.

Africa, Botswana


1 D1406-165


2014 Lucara increases revolving credit facility to $ 50 million.


Africa, Botswana


2 D1406-166


2014 Lucara announces first semi-annual dividend.


Africa, Botswana


3 D1406-167

LukOil

2014 LukOil to dig diamonds in $ 850 million north Russia project. Grib

LukOil, May 23, 1p. Russia, Arkhangelsk


4 D1406-168

Mail Guardian Africa

2014 De Beers diamond prices rise as Anglo chases targets. 5% a year plan.

Mail Guardian Africa, May 7, 1p.

Global

News item - De Beers

5 D1406-169

Margaret Lake Diamonds

2014 Margaret Lake Diamonds debuts: Canada re-vitalises diamond exploration 25 years on.

Margaret Lake Diamonds, April 25, 4p.



6 D1406-170

Merlin Diamonds Limited

2014 Blumont Group takeover bid for Merlin Diamonds Limited increase in offer consideration 5 for 1

Merlin Diamonds Limited, April 23, 1p.

Australia


7 D1406-171

Miningmx

2014 Fiscal and regulatory failings hurt Zimbabwe.

Miningmx.com, May 27, 2p.

Africa, Zimbabwe

News item - legal

8 D1406-172

Mountain Province Diamonds Inc.

2014 Mountain Province Diamonds files Gahcho Kue project 2014 feasibility study report.

Mountain Province Diamonds Inc., May 14, 2p.



9 D1406-173

North Arrow Minerals Inc.

2014 North Arrow updates Timiskaming, Luxx and Mel diamond projects.

North Arrow Minerals Inc., May 12, 1p.

Canada, Ontario, Quebec


10 D1406-174

North Arrow Minerals Inc.

2014 North Arrow completes spring exploration at Redemption, NWT.

North Arrow Minerals Inc., May 22, 1p.



11 D1406-175

Olivut Resources Limited

2014 Olivut Resources exploration and funding update. HOAM

Olivut Resources Limited, May 6, 1p.

Canada, Northwest





Territories

1 D1406-176

Pangolin Diamonds Corporation

2014 Pangolin closes $ 718,000 financing for its diamond projects in Botswana.

Pangolin Diamonds Corporation, May 15, 1p.

Africa, Botswana


2 D1406-177

Paragon Diamonds

2014 View from the top: interview with Martin Doyle.

Paragon Diamonds, April 25, 2p.

Africa, Lesotho, Botswana

News item - Doyle

3 D1406-178

Peregrine Diamonds Limited

2014 Peregrine reports 7.47 million carat inferred resource for the top 250 metres of the CH-6 kimberlite and tonnage estimates for CH-7 and CH-44.

Peregrine Diamonds Limited, May 7, 4p.

Canada, Nunavut, Baffin Island


4 D1406-179

Kilalea, D.

2014 Gem Diamonds Limited.. Strong rough prices boost Q1.

RBC Capital Markets, May 12, 6p.

Africa, Lesotho, Botswana


5 D1406-180

Kilalea, D.

2014 Mountain Province Diamonds Inc - the final funding stages approach.



News item - Mountain Province

6 D1406-181

Kilalea, D.

2014 RBC Dimond digest: rough prices hold well as summer starts.


Global

News item - diamond prices

7 D1406-182

Kilalea, D.

2014 Stornoway Diamond Corp. all set to build Renard.


Canada, Quebec

News item - Stornoway

8 D1406-183

Kilalea, D.

2014 Lucara good Q1 to be followed by bumper Q2.


Africa, Botswana

News item - Lucara

9 D1406-184

Rockwell Diamonds Inc.

2014 Rockwell posts solid 2014 results with significant increases in revenue and operating profits on the back of delivering two new mines as part of the Middle Orange River strategy.

Rockwell Diamonds Inc., May 22, 8p.



10 D1406-185

Scio Diamond Technology Corporation

2014 SCIO reports 49% increase in diamond production y-o-y for fiscal 2014.

Scio Diamond Technology Corporation, April 29, 1p.

Technology





1 D1406-186

Shore Gold Inc.

2014 Star-Orion South diamond project memorandum of understanding signed with James Smith Cree Nation.

Shore Gold Inc., May 5, 1p.

Canada, Saskatchewan


2 D1406-187

Stellar Diamonds plc.

2014 Diamond grades increased at Tongo project, Sierra Leone.

Stellar Diamonds plc, May 14, 3p.



3 D1406-188

Stellar Diamonds plc

2014 Issue of equity to raise 1.85 million lbs for Baoule kimberlite project… and Tongo Dyke-1.

Stellar Diamonds plc, May 8, 2p.

Africa, Guinea, Sierra Leone


4 D1406-189

Stockwatch News

2014 CMKM defendant Turino seeks release from jail.

Stockwatch News, May 13, 1p.

USA

News item - CMKM

5 D1406-190

Stornoway Diamond Corporation

2014 Stornoway enters into voting agreement with a significant shareholder in support of comprehensive financing plan.

Stornoway Diamond Corporation, April 30, 1p.

Canada, Quebec


6 D1406-191

Stornoway Diamond Corporation

2014 Stornoway announces closing of C$132 million public offering of subscription receipts and C$242 million private placement of subscription receipts. ( Orion Mine Finance)

Stornoway Diamond Corporation, May 23, 1p.

Canada, Quebec


7 D1406-192

Sunergy, Inc.

2014 Sunergy's Liberian dredge operations start recovering diamonds and gold and wash plant equipment being readied for operations. Bomi Hills to Lofa River area.

Sunergy, Inc., April 25, 1p.

Africa, Liberia


8 D1406-193

Sunergy, Inc.

2014 Sunergy repays Asher Enterprises 100% of outstanding note due May 13, 2014 and prepares to install its new wash plant in Kono district, Sierra Leone to establish sustainable cash flow.

Sunergy, Inc., May 13, 1p.



9




D1406-194

Sunrise Resources plc.

2014 Interim statement - Cue Sunrise Resources plc., May 19, 1/4p.

Australia


1 D1406-195

Toronto Star

2014 Tiffany wows as earnings up 50%.

Toronto Star, May 22, 1p. Global

News item - Tiffany

2 D1406-196

cbc.ca

2014 Gahcho Kue threatens environment: Yellowknife Denes.

www.cbc.ca, May 8, 1p. Canada, Northwest Territories

News item - De Beers, Mountain Province

3 D1406-197

The Israeli Diamond Industry

2014 Yellow diamond fetches $ 16 million in Geneva auction.

www.israelidiamond.co.il, May 14, 1/4p.

Global


4 D1406-198

The Israeli Diamond Industry

2014 Auctioned diamond to be Asia's largest ever.. Eye of Golconda neckpiece .. 118.28 carat stone.

www.israelidiamond.co.il, May 14, 1/4p.

Global


5 D1406-199

Polished prices

2014 World's largest blue diamond 13.22 to be auctioned.

www.polishedprices.com, May 4, 1/8p.

Global


6 D1406-200

Polished prices

2014 De Beers says price book leak 'toxic'.


Global


7 D1406-201

Polished prices

2014 Yellows and blues set to fetch strong prices at Geneva auction.


Global


8 D1406-202

Rough-polished

2014 Alrosa board proposed dividend payments for 2013.

www.rough-polished .com, April 25, 1/4p.

Russia

News item - Alrosa

9 D1406-203

Rough-polished

2014 Morgan Stanley upgraded target value of Alrosa's shares by 10%.


Russia

News item - Alrosa

10 D1406-204

Rough-polished

2014 Cote d'Ivoire ex-rebel sidesteps diamond embargo.


Africa, Ivory Coast

News item - legal

11 D1406-205

Rough-polished

2014 De Beers Q1 output jumps 18% y-o-y


Global


12 D1406-206

Rough-polished

2014 Exceptional diamond segments … large color diamonds - strong

www.rough-polished .com, April 25, 1p.

Global





prices.

1 D1406-207

Rough-polished

2014 Zim formally informs Marange diamond miners of impending changes.


Africa, Zimbabwe

News item - legal

2 D1406-208

Rough-polished

2014 Crater state Park continues to produce diamonds.


USA, Arkansas

News item - Crater of Diamonds

3 D1406-209

Rough-polished

2014 Alrosa is refinancing its short term debt.


Russia

News item - Russia

4 D1406-210

Rough-polished

2014 Alrosa to borrow more than $ 1.7 billion from VTB and Alfa-Bank.


Russia


5 D1406-211

Rough-polished

2014 De Beers forever mark celebrates 'important milestone'.


Global


6 D1406-212

Rough-polished

2014 As a diamond center in Latin America, Panama has no rivals - President of the Panama Diamond Exchange.


Central America, Panama

News item - exchange

7 D1406-213

Rough-polished

2014 Diamond demand is growing twice faster than supply, expert says.


China

News item - demand

8 D1406-214

Rough-polished

2014 Epstein: We believe Antwerp is the ideal partner for Zimbabwe.

www.rough-polished .com, May 12, 1/2p.

Africa, Zimbabwe

News item - ZMDC

9 D1406-215

Rough-polished

2014 Oppenheimer Fund raises its stake in Alrosa to 2.4 %.


Russia

News item - Alrosa

10 D1406-216

Rough-polished

2014 Gemfields rakes in $ 13.5m rough emeralds auction in Jaipur.


Global


11 D1406-217

Rough-polished

2014 DiamondCorp rakes in over $ 400,000 from Lace mine tailings recovery.



News item - DiamondCorp

12 D1406-218

Rough-polished

2014 Barclays started analysis of AK Alrosa and recommends to "hold" its shares.


Russia

News item - Alrosa

13




D1406-219

Rough-polished

2014 Zim may use diamond, gold export earnings to secure Chinese financing.


Africa, Zimbabwe


1 D1406-220

Rough-polished

2014 Gem ups Letseng diamond output, sales in Q1.


Africa, Lesotho


2 D1406-221

Rough-polished

2014 Zim to audit diamond mining firms in Marange, revises diamond laws.


Africa, Zimbabwe

News item - legal

3 D1406-222

Rough-polished

2014 De Beers denies takeover of Russian synthetic diamond company.


Russia


4 D1406-223

Rough-polished

2014 Indian diamantaires set up panel for 'Surat Diamond Bourse'.


India

News item - Surat

5 D1406-224

Rough-polished

2014 Indian diamantaires want major mining companies to set up offices in Surat.


India

News item - Surat

6 D1406-225

Rough-polished

2014 Canada produced over 5 million carats of diamonds in 2013 - AWDC


Canada

News item - production

7 D1406-226

Rough-polished

2014 Zim court rejects ACR's Marange diamond claims appeal.


Africa, Zimbabwe

News item - ACR

8 D1406-227

Rough-polished

2014 CIBJO conference on synthetic diamonds sparks vigorous debate.


Global

News item - synthetics

9 D1406-228

Rough-polished

2014 Zim maintains second Antwerp tender attracted an average price of $ 72 /ct.


Africa, Zimbabwe

News item - Marange

10 D1406-229

Rough-polished

2014 Diamond Commission strengthens definition of 'diamond' to support natural stones.


Global

News item - CIJBO

11 D1406-230

Rough-polished

2014 Russia jewellers Guild proposed establishment of a 'Jewellery Oscar'.


Global

News item - oscar

12 D1406-231

Rough-polished

2014 in 2014, Alrosa expects 5 percent growth in


Russia

News item - Alrosa




rough prices.

1 D1406-232

Rough-polished

2014 Indian diamond industry virtically split on proposed SDB.


India

News item - Surat

2 D1406-233

Rough-polished

2014 Pangolin Diamonds in fresh Botswana precious gems find. Magi


Africa, Botswana

News item - Pangolin

3 D1406-234

Rough-polished

2014 AK Alrosa paid 6th coupon yield of RUB 220.6m on bond issues.


Russia

News item - Alrosa

4 D1406-235

Rough-polished

2014 Antwerp tenders of Marange diamonds fetched better prices than Dubai - AWDC


Africa, Zimbabwe

News item - AWDC

5 D1406-236

Rough-polished

2014 Panama Diamond Exchange launches trilingual website. English, Spanish and Portuguese


Central America, Panama

News item - Panama Diamond Exchange

6 D1406-237

Rough-polished

2014 Zim to go ahead with Dubai diamond sales despite 'failing trustworthy test'.


Africa, Zimbabwe

News item - Dubai

7 D1406-238

Rough-polished

2014 De Beers eyes 5% annual rise in diamond prices.


Global


8 D1406-239

Rough-polished

2014 Alfa-Bank has secured $ 920 million credit facility for Alrosa.


Russia

News item - Alrosa

9 D1406-240

Idex Memo

2014 2013 Diamond pipeline: lackluster with few sparkles.

www.rough-polished .com, May 8, 6p.

Global

News item - diamond pipeline

10 D1406-241

Xmet Inc.

2014 Xmet completes initial drill program on the Blackflake and releases geophysical data.

Xmet Inc., May 13, 1p. Canada, Ontario


11

Documents

Diamonds, Kimberlites, and Related Geology June 2014...THE NATURE OF DIAMONDS AND THEIR USE IN EARTH’S STUDY Bressanone-Brixen (Italian Alps) 27-31 January 2015 The school will provide