Diamonds, Kimberlites, and Related Geology July 2015€¦ · Diamonds, Kimberlites, and Related Geology July 2015 Highlights awareness ... spherical geometry mantle model. Journal

THE SHEAHAN LITERATURE SERVICE

Diamonds, Kimberlites, and Related Geology

July 2015

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]

"The greatest compliment that was ever paid me was when[some]one asked me what I thought, and attended to my answer."

Henry David Thoreau Andy Moore suggests: A useful source of information on recent publications is Gillian Foulger's mantle plume website www.mantleplumes.org

Gillian is trying to engage people to submit ~ 1000 word summaries of recent pro- or anti- plume papers to encourage debate.

This site is for those who are interested in the origin of "hot spots", or melting anomalies. For over 30 years the interrelated, but usually viewed as independent, plate tectonic and plume theories have been the two most important paradigms in the solid Earth sciences. The plume theory, invoked to explain “hot spot” or “anomalous” volcanism, is currently under vigorous debate. The primary objective of www.mantleplumes.org is to encourage this discussion by making a broad suite of relevant information easily available to students, specialists in all branches of the Earth sciences, and lay people.

SYMPOSIUM on STRATEGIC and CRITICAL MATERIALS Nov. 13, 14 2015 Victoria British Columbia http://www.empr.gov.bc.ca/Mining/Geoscience/Documents/2015symp.pdf Contact George Simandl [email protected] 250 952-0413 General topics: carbonatites and peralkaline intrusions ( others as well) Mines and projects: Aley carbonatite, Asheam carbonatite, ILimuassaq complex, Upper Fir carbonatite, Strange Lake REE, Thor Lake REE, Wicheeda Lake REE. PAT Comment: You may wonder why I include news items that are overlapping from various sources ie rough diamond, diamonds.net, idex online etc … often one reference may include more or a different outline of same news and I include that as well as the slant/ analysis or background from these sources. Brett The ascent of kimberlite: insights from olivine IN: Earth and Planetary Science Letters Jia and Kerrich N isotope composition of primitive mantle compared to diamonds IN: Lithos Marques de Morais Blood diamonds: torture and corruption in Angola. English translation Milani, Rakevich, Stepanov et al. Diamond – garnet geobarometry: the role of garnet compressibility and expansivity IN: Lithos Wyman, Hollings, Conceicao Geochemistty and radiogenic isotope characteristics of xenoliths in Archean diamondiferous lamprophyres Superior Province. IN: Lithos Pat Sheahan Honorary Research Associate University of British Columbia /MDRU

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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 D1507-01 Harlow, G.E.,

Tsujimori, T., Sorensen, SS.

2015 Jadeites and plate tectonics.

Annual Review of Earth and Planetary Sciences, Vol. 43, pp. 105-138.

Mantle

Jadeites

&2 D1507-02 Hacker, B.R.,

Kelemen, P.B., Behn, M.D.

2015 Continental lower crust. Annual Review of Earth and Planetary Sciences, Vol. 43, pp. 167-205.

Mantle

Subduction

&3 D1507-03 Jagoutz, O.,

Kelemen, P.B. 2015 Role of arc processes in

the formation of continental crust.

Annual Review of Earth and Planetary Sciences, Vol. 43, pp. 363-404.

Mantle

Magmatism

&4 D1507-04 Bailey, B.L.,

Blowes, D.W., Smith, L., Sego, D.C.

2015 The Diavik waste rock project: geochemical and microbiological characterization of drainage from low sulfide waste rock: active zone field experiments.

Applied Geochemistry, in press available

Canada, Northwest Territories

Deposit - Diavik

&5 D1507-05 Gernon, T.M.,

Spence, S., Trueman, C.N., Taylor, R.N., Rohling, E., Hatter, S.J., Harding, I.C.

2015 Emplacement of Cabezo Maria lamproite volcano (Miocene) SE Spain.

Bulletin of Volcanology, Vol. 77, 6, pp. 52-

Europe, Spain

Lamproites

&6 D1507-06 Bucher, K.,

Stober, I., Muller-Sigmund, H.

2015 Weathering crusts on peridotite.

Contributions to Mineralogy and Petrologgy, Vol. 169, pp. 52-

Europe, Spain

Deposit - Ronda

&7 D1507-07 Even-Zohar, C. 2015 Temporary color

enhancement: a potential game changer for industry and grading labs.

Diamond Intelligence Briefing, Vol. 30, no. 857, May 28, 8p.

Technology

Diamond - colours

&8 D1507-08 Marques de

Morais, R. 2015 Blood diamonds: torture

and corruption in Angola. IN ENGLISH publ originally in Portugal in 2011.

Diamonds.net, English translation 156p. Pdf available

Africa, Angola

Book

&9 D1507-09 Dobretsov, N.L.,

Zedgenizov, D.A., Litasov, K.D.

2015 Evidence for and consequences of the "hot" subduction model.

Doklady Earth Sciences, Vol. 461, 1, pp. 517-521.

Mantle

Subduction

&10 D1507-10 Pavlov, V.E.,

Shatsilli, A.V. 2015 Place of birth of the

Siberian platform. Doklady Earth Sciences, Vol. 462, 1, pp. 444-448.

Russia

Magmatism

&11 D1507-11 Shchukina, E.V.,

Agashev, A.M., 2015 Equigranualr eclogites

from the V. Grib Doklady Earth Sciences, Vol. 462, 1, pp.

Russia, Archangel

Deposit - Grib




Golovin, N.N., Pokhilenko, N.P.

kimberlite pipe: evidence for Paleoproterozoic subduction on the territory of the Arkangelsk diamondiferous province.

497-501.

&1 D1507-12 Liu, J., Scott,

J.M., Martin, C.E., Pearson, D.G.

2015 The longevity of Archean mantle residues in the convecting upper mantle and their role in young continent formation.

Earth and Planetary Science Letters, Vol. 424, pp. 109-118.

Mantle

Convection

&2 D1507-13 Brett, R.C. 2015 The ascent of

kimberlite: insights from olivine.

Earth and Planetary Science Letters, Vol. 424, pp. 119-131.

Canada, Northwest Territories, Africa, Tanzania

Deposit - Diavik, Igwisi Hills

&3 D1507-14 Mints, M.V. 2015 Postcollisional

lamproites of the Por'ya Guba dike fields.

East European Craton: Early Precambrian history & 3 D. Model Authors: M.V. Mints, K.A. Dokukina, A.N. Konilov, I.B. Philippova, C.L. Zlobin., GSA SPE 510, 433p. Chapter 11, section 3

Russia, Kola, Karelia

Lamproites

&4 D1507-15 Ickert, R.B.,

Stachel, T., Stern, R.A., Harris, J.W.

2015 Extreme 18O-enrichment in majorite constrains a crustal origin of transition zone diamonds.

Geochemical Perspectives Letters, 1, pp. 65-74.

Africa, South Africa

Deposit - Jagersfontein

&5 D1507-16 Ignaov, P.A.,

Novikov, K.V., Shmonov, A.M., Razumov, A.N., Kilizhikov, O.K.

2015 Comparative analysis of ore bearing structures in Maiskoe, Markha and Ozernoe kimberlite bodies at the Nakyn field, Yakutia.

Geology of Ore Deposits, Vol. 57, 2, pp. 111-117.

Russia

Deposit - Nakyn

&6 D1507-17 Mantovani,

M.S.M., Louro, V.H.A., Ribeiro, V.B., Requejo, H.S., dos Santos, R.P.Z.

2015 Geophysical analysis of Catalao 1 alkaline carbonatite complex in Goias, Brazil.

Geophysical Prospecting, in press available

South America, Brazil

Deposit - Catalao

&7 D1507-18 Shatsky, V.S.,

Zedgenizov, D.A., Ragozin, A.L., Kalinina, V.V.

2015 Diamondiferous subcontinental lithospheric mantle of the northeastern Siberian Craton: evidence from mineral

Gondwana Research, Vol. 28, 1, pp. 106-120.

Russia

Diamond - inclusions




inclusions in alluvial diamonds. Kapchan Fold Belt Olenek Province

&1 D1507-19 Upadhyay, D.,

Kooijman, E., Singh, A.K., Mezger, K., Berndt, J.

2015 The basement of the Deccan Traps and its Madagascar connection: constraints from xenoliths.

Journal of Geology, Vol. 123, pp. 295-310.

Africa, Madagascar

Xenoliths

&2 D1507-20 Quere, S.,

Lowman, S., Arkani-Hamed, J.P.

2015 Subcontinental sinking slab remnants in a spherical geometry mantle model.

Journal of Geophysical Research, Vol. 118, 4, pp. 1760-1777.

Mantle

Subduction

&3 D1507-21 Li, M.,

McNamara, A.K. 2015 The difficulty for

subducted oceanic crust to accumulate at the Earth's core-mantle boundary.

Journal of Geophysical Research, Vol. 118, 4, pp. 1807-1816.

Mantle

Subduction

&4 D1507-22 Vladkar, S.G. 2015 Mineralogy and

geochemistry of fenitized nephelinites of the Amba Dongar complex, Gujarat.

Journal of the Geological Society of India, Vol. 85, 1, pp. 87-97.

India

Nephelinites

&5 D1507-23 Brushan, S.K. 2015 Geology of the Kamthai

rare earth deposit. Journal of the Geological Society of India, Vol. 85, 5, pp. 537-546.

India, Rajasthan

Calciocarbonatite

&6 D1507-24 Wyman, D.A.,

Hollings, P., Conceicao, R.V.

2015 Geochemistry and radiogenic isotope characteristics of xenoliths in Archean diamondiferous lamprophyres: implications for the Superior Province cratonic keel.

Lithos, in press available 20p.

Canada, Ontario

Lamprophyres

&7 D1507-25 Jia, Y., Kerrich,

R. 2015 N isotope composition

of the primitive mantle compared to diamonds.

Lithos, In press available 8p.

Mantle

Nitrogen - subduction

&8 D1507-26 Milani, S.,

Nestola, F., Alvaro, M., Pasqual, D., Mazzucchelli, M.L., Domeneghetti, M.C., Geiger, C.A.

2015 Diamond -garnet geobarometry: the role of garnet compressibility and expansivity.

Lithos, Vol. 227, pp. 140-147.

Technology

Geobarometry

&9




D1507-27 Gilio, M., Clos, F., Van Roermund, H.L.M.,

2015 The Frimingen garnet peridotite ( central Swedish Caledonides). A good example of the characteristic PTt path of a cold mantle wedge garnet peridotite.

Lithos, Vol. 230, pp. 1-16. Europe, Sweden

Peridotite

&1 D1507-28 Novella, D.,

Bolfan-Casanova, N., Nestola, F., Harris, J.W.

2015 H2O in olivine and garnet inclusions still trapped in diamonds from the Siberian craton: implications for the water content of cratonic lithosphere peridotites.

Lithos, Vol. 230, pp. 180-183.

Russia

Deposit - Udachnaya

&2 D1507-29 Mikhailova, J.A.,

Kalashnikov, A.O., Sokharev, V.A., Pakhomovsky, Y.A., Konopleva, N.G., Yakovenchuk, V.N., Bazai, A.V., Goryainov, P.M., Ivanyuk, G.Yu.

2015 3D mineralogical mapping of the Kovdor phoscorite-carbonatite complex, Russia.

Mineralium Deposita, In press available. 19p.

Russia

Carbonatites

&3 D1507-30 Bell, K. Zaitsev,

A.N., Spratt, J., Frojdo, S., Rukhlov, A.S.

2015 Elemental, lead and sulfur isotopic compositions of galena from Kola carbonatites, Russia - implications for melt and mantle evolution.

Mineralogical Magazine, Vol. 79, pp. 219-241.

Russia

Carbonatites

&4 D1507-31 Cucciniello, C.,

Tucker, R.D., Jourdan, F., Melluso, L., Morra, V.

2015 The age and petrogenesis of alkaline magmatism in the Ampasindava Peninsula and Nosy Be archipelago, northern Madagascar.

Mineralogy and Petrology, in press available. 23p.

Africa, Madagascar

Magmatism

&5 D1507-32 Sazonova, L.V.,

Nosova, A.A., Kargin, A.V., Borisovskiy, S.E., Tretyachenko, V.V., Abazova, Z.M., Griban, Yu.G.

2015 Olivine from the Pionerskaya and V. Grib kimberlite pipes, Arkangelsk diamond province, Russia: types, composition, and origin.

Petrology, Vol. 23, 3, pp. 227-258.

Russia

Deposit - Grib

&6 D1507-33 Yuryeva, O.P.,

Rakhmanova, 2015 The characteristic

photoluminescence and Physics Chemical Minerals, in press


Deposit - Sao Luis




M.I., Nadolinny, V.A., Zedgenizov, D.A., Shatsky, V.S., Kagi, H., Komarovskikh, A.Y.

EPR features of superdeep diamonds ( Sao Luis, Brazil).

available. 16p.

&1 D1507-34 Sharapov, V.N.,

Chudnenko, K.V., Tomilenko, A.A.

2015 The physicochemical dynamics of carbonatization of the rocks of lithospheric mantle beneath the Siberian Platform.

Russian Geology and Geophysics, Vol. 56, pp. 696-708.

Russia

Carbonatites

&2 D1507-35 Mironov, V.P.,

Rakevich, A.L., Stepanov, F.A., Emelyanova, A.S., Zedgenizov, D.A., Shatsky, V.S., Kagi, H., Martynovich, E.F.

2015 Luminescence in diamonds of the Sao Luiz placer ( Brazil).



Diamond luminesence

&3 D1507-36 Lazereva, E.V.,

Zhmodik, S.M., Dobretsov, N.L., Tolstov, A.V., Shcherbov, B.L., Karmanov, N.S., Gerasimov, E.Yu., Bryanskaya, A.V.

2015 Main minerals of abnormally high grade ores of the Tomtor deposit ( Arctic Siberia).


Russia

Deposit - Tomtor

&4 D1507-37 Persikov, E.S.,

Bukhtiyarov, P.G., Sokol, A.G.

2015 Change in the viscosity of kimberlite and basaltic magmas during their origin and evolution ( prediction).


Canada, Northwest Territories, Russia

Deposit - Jericho, Udachnaya

&5 D1507-38 Edwards, S.J.,

Schellart, W.P., Duarte, J.C.

2015 Geodynamic models of continental subduction and obduction of overriding plate forearc oceanic lithosphere on top of continental crust.

Tectonics, in press available

New Zealand arena

Subduction

&6 D1507-39 Steyn, M. 2015 A disgrace to the

profession. The World's scientists, in their own words, on Michael E. Mann, his Hockey Stick and Their damage to Science. Vol. 1.

www.steynstore.com, Book $ 19.95

Global

Climate change

&7




D1507-40 Womp-int. 2015 New Cullinan facility will improve diamond recovery, cut costs.

www.womp-int.com, 1p. Africa, South Africa

Deposit - Cullinan

1

Sheahan&Literature&Service& & & & & &&&& &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&Diamonds&Newsletter&–&July&2015&&

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

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

&1 D1507-41 Adamera

Minerals Corporation

2015 Adamera completes sale of diamond data.

Adamera Minerals Corp., May 28, 1p.

Canada, Nunavut

News item - press release

&2 D1507-42 Allafrica.com

2015 Zim sells $ 1.4 million

carats of rough diamonds.

Allafrica.com, June 11, 1/4p.

Africa, Zimbabwe

News item - rough

&3 D1507-43 Allafrica.com

2015 Govt loses potential

revenue after mine's closure. DTZ-OZGEO alluvial operation.

Allafrica.com, June 2, 1/4p.

Africa, Zimbabwe

News item - DTZ-OZGEO

&4 D1507-44 Arctic Star

Exploration

2015 Arctic Star updates the Redemption diamond project, Lac de Gras.

Arctic Star Exploration, June 2, 1p.



&5 D1507-45 Bluerock

Diamonds plc.

2015 Blue Rock Diamonds sells 116 carat parcel for average of USD440 per carat.

Bluerock Diamonds plc., June 25, 1p.



&6 D1507-46 Botswana

Diamonds plc.

2015 Exploration update - June 2015. Fieldwork .. Anomaly PL210/2014 drill programme and more work on PL206 & 207. Alrosa

Botswana Diamonds plc., June 18, 1p.

Africa, Botswana


&7 D1507-47 Canterra

Minerals Corporation

2015 Canterra provides exploration update on southern Slave properties, NWT.

Canterra Minerals Corporation, June 17, 2p.



&8 D1507-48 Creamers

Mining Weekly

2015 Diamond miners show potential; as 4 declare dividends in last year. Alrosa, Dominion, Gem, Petra.

Creamers Mining Weekly, June 12, 3p.

Global

News item - dividends


Mining Weekly

2015 Diamond industry in the midst of 'complicated times'. Blom.

Creamers Mining Weekly, June 15, 1/4p.

Global

News item - economics


Mining Weekly

2015 Alrosa does not see recovery in diamond prices this year.

Creamers Mining Weekly, June 16 1/4p.

Russia

News item - Alrosa


Mining Weekly

2015 Uncertain future for global diamond trade as profits vanish.


Global


&12




D1507-52 Creamers Mining Weekly

2015 Rockwell to focus on production profile as Saxendrift output decreases.



News item - Rockwell


Mining Weekly

2015 Rio Tinto to sell stakes in Zim diamond, coal assets. Murowe


Africa, Zimbabwe

News item - Rio Tinto


Mining Weekly

2015 India makes provisions for composite mining licences.


India

News item - legal


Mining Weekly

2015 Junior miners perceive Botswana as best investment destination.


Africa, Botswana

News item - legal


Mining Weekly

2015 South Africa's geoscience desperately underfunded - Nedbank Capital comment.



News item - DMR


Mining Weekly

2015 DiamondCorp offers 21 m shares to raise 2 million pounds. Lace



News item - DiamondCorp


Mining Weekly

2015 Mining subtracting from Botswana's economic growth - economist.


Africa, Botswana



Mining Weekly

2015 Botswana diamond beneficiation hits rough patch.


Africa, Botswana

News item - Diamond Hub


Mining Weekly

2015 Lesotho govt processing sale of Mothae diamond stake.


Africa, Lesotho

News item - Paragon


Mining Weekly

2015 Pioneering Botswana diamond circuit set for design run this month. Karowe

Creamers Mining Weekly, June 9, 2p.

Africa, Botswana

News item - Lucara


Mining Weekly

2015 Lucapa to sign earthmoving deal, lists on Frankfurt Stock Exchange 28 May. Lulo

Creamers Mining Weekly, May 28, 1p.

Africa, Angola

News item - Lucapa

&11 D1507-63 De Beers Group

2015 Phillippe Mellier:

Sustainable returns across the diamond pipeline are key to investment.

De Beers Group, June 16, 3p.

Global

News item - De Beers

&12 D1507-64 De Beers Group

2015 Report to Society..

Building Forever 2014 De Beers Group, June 5,

Global News item - press release




&1 D1507-65 Diamante

Minerals, Inc.

2015 Diamante provides update on Mineracao Batovi diamond project.

Diamante Minerals, Inc., June 5, 2p.

South America, Brazil, Mato Grosso


&2 D1507-66 Diamond Fields

International Ltd.

2015 Diamond Fields International restarts Namibian diamond operations.

Diamond Fields International Ltd., June 5, 1p.

Africa, Namibia


&3 D1507-67 Even-Zohar, C.

2015 ABN AMRO's Indian

exit: Induslnd bank catapults into $ 1 billion exposure.

Diamond Intelligence Briefing ( Courtesy of Chaim), Vol. 30, 854, Apr. 13, 8p.

India

News item - Induslnd

&4 D1507-68 Even-Zohar, C.

2015 Botswana beneficiation

from a marketing agreement perspective: local rough supplies - a promise broken.

Diamond Intelligence Briefing ( Courtesy of Chaim), Vol. 30, 856, May 11, 8p.

Africa, Botswana

News item - beneficiation

&5 D1507-69 Diamond

Intelligence Briefs

2015 Sunland Minerals' Botswana exploration promising.

Diamondintelligence.com, June 18, 1/4p.

Africa, Botswana

News item - Botswana Diamonds, Alrosa

&6 D1507-70 Diamond

Intelligence Briefs

2015 KPCS intercessional: Zimbabwe on the agenda again.


Africa, Zimbabwe

News item - KP

&7 D1507-71 Diamond

Intelligence Briefs

2015 Kennady's Kelvin produces excellent results - sample grade 2.74 ct



News item - Kennady

&8 D1507-72 Diamonds.net

2015 Okavango diamond

sales volume -20% so far in 2015.

Diamonds.net, June 1, 1/4p.

Africa, Botswana

News item - Okavango


2015 Rockwell's revenue

+19%, loss widens 6%. Diamonds.net, June 1, 1/4p.




2015 Confidence in the

diamond dream. Forevermark


Global



2015 Mustang Resources

recovers diamonds in Mozambique.


Africa, Mozambique

News item - Mustang





2015 Israel's diamond

leaders call for reduced rough supply.


Global

News item - IDE


2015 Shore Gold completes

drilling program at Star-Orion South.


Canada, Saskatchewan

News item - Shore


2015 Diamonds provide

ample funding to warlords in CAR.


Africa, Central African Republic

News item - legal


2015 De Beers June sight

estimated at $ 550 million.


Global



2015 Zimbabwe turns to

Botswana for better managing diamonds.


Africa, Zimbabwe, Botswana

News item - legal


2015 Paragon preps share

buyback, seeks immediate Mothae acquisition.


Africa, Lesotho

News item - Paragon


2015 Demand grows for

industrial and synthetic diamonds.


Technology

News item - industrial diamonds


2015 Dominion launches

CanadaMark B2B trading platform.



News item - Dominion


2015 Diamond trade subject

to arbitration on color grading standards. Policy sets guidelines to tolerance levels on grading.


Technology

News item - grading


2015 Namibia reviews terms

of venture with De Beers.


Africa, Namibia



2015 Kennedy Diamonds

reports sample grade from Kelvin winter drill program.



News item - Kennady

&12




D1507-87 Diamonds.net

2015 OGI releases Titanium 5X laser cutting system.


Technology

News item - OGI


2015 Alrosa repays $ 185 m

worth of commercial bonds.


Russia

News item - Alrosa


2015 London Bourse

members gain access to bonded warehouse.


Europe, England

News item - bourse


2015 KP leaders stress

consensus and bringing CAR, Venezuela back into compliance.


Africa, Central African Republic, South America, Venezuela

News item - KP


2015 Mellier says Namibia's

new diamond sales terms are satisfactory.


Africa, Namibia



2015 Trans Hex Group FY

revenue +35%, profit soars.



News item - Trans Hex


2015 Weak ruble boosts

Alrosa revenue, profit in 1 Q.


Russia

News Item - Alrosa


2015 AWDC, diamond admin.

Of China sign cooperative agreement.


China, Belgium

News item - AWDC


2015 Lucapa ramping up

Angola alluvial production, kimberlite exploration.


Africa, Angola

News item - Lucapa


2015 DiamondCorp raises $ 5

m., proposes another $ 3 m 'open offer' placement. Lace

Diamonds.net, June 5, 3p.


News item - DamondCorp


2015 Illegal rough trade

flourishes despite CAR's embargo.


Africa, Central African Republic

News item - legal


2015 IGI certifies 10 carat

diamond grown with new technology. ( New Diamond Technology lab Russia fashioned from 32.36 carat man made rough)

Diamonds.net, May 26, 1/4p.

Technology

News item - New Diamond Technology LLC





2015 Stellar Diamonds

achieved $ 505,000 from its recent sale of rough diamonds from the Baoule project in Guinea.


Africa, Guinea

News item - Stellar

&2 D1507-100

Diamonds.net

2015 De Beers re-launch 'A diamond is forever' campaign.


Global


&3 D1507-101

Diamonds.net

2015 Phillippe Mellier's speech transcript from JCK talks series.


Global


&4 D1507-102

Dominion Diamond Corporation

2015 Dominion Diamond Corporation's fiscal 2016 first quarter results to be released Wednesday June 10, 2015.

Dominion Diamond Corporation, June 10, 3p.



&5 D1507-103

Firestone Diamonds plc.

2015 Liqhobong mine development project update.

Firestone Diamonds plc., June 23, 4p.

Africa, Lesotho


&6 D1507-104

Golden Saint Resources Ltd.

2015 Operational update ongoing sampling exercise in Tongo.

Golden Saint Resources Ltd., May 28,1p.

Africa, Sierra Leone


&7 D1507-105

Diamond Investing News

2015 5 top industrial diamond producing countries ( DRC, Russia, Australia, Botswana, South Africa)

http:diamondinvestingnews.com, June 18, 2p.

Global

News item - industrial diamonds

&8 D1507-106

Idex Magazine

2015 2014: the year of confidence lost.

Idex Magazine, June pp. 38-43.

Global

News item - markets

&9 D1507-107

Idex Magazine

2015 The 2014 diamond pipeline.

Idex Magazine, June pp. 44-66.

Global

News item - pipeline

&10 D1507-108

Idex Online

2015 TACY's 2014 Diamond Pipeline: the year the industry lost confidence in its future.

Idex Online, June 11, 2p. Chart

Global

News item - Diamond pipeline

&11 D1507-109

Idex Online

2015 De Beers's rough diamond sales for beneficiation reaches $ 1.5 billion in 2014.

Idex Online, June 2, 1/2p. Global


&12 D1507-110

Index Online

2015 De Beers satisfied with new Namibian sales agreement.

Idex Online, June 25, 1/4p.

Africa, Namibia

News tem - De Beers




&1 D1507-111

Idex Memo

2015 The myth of marketing to millennials. ( their dollars are fickle)

Idex Online, June 25, 1p. Global

News item - markets

&2 D1507-112

Idex Memo

2015 Retail jewelry prices down: demand down - where's the logic? Big picture issues and obstacles discussed.

Idex Online, May 28, 1p. Global

News item - retail

&3 D1507-113

Idex Online

2015 Fatality reported in Kimberley Diamonds Lerala mine.

Idexonline, June 11, 1/4p.

Africa, Botswana

News item - Kimberley Diamonds

&4 D1507-114

Idex Memo

2015 A tagline forever … De Beers ..

Idexonline, June 11, 1p. Global


&5 D1507-115

Karelian Diamond Resources

2015 Kimberlite intersected in five further pits in Kuhmo.

Karelian Diamond Resources, June 10, 1p.

Europe, Finland


&6 D1507-116

Kennady Diamonds Inc.

2015 Kennady Diamonds drills 159 meters of kimberlite at Kelvin.

Kennady Diamonds Inc., June 11, 2p.



&7 D1507-117


2015 Kennady Diamonds drills 46 meters of kimberlite at Faraday 2.




&8 D1507-118


2015 Kennady Diamonds drills 156 meters of kimberlite at Kelvin and 51 meters of kimberlite at Faraday 2.




&9 D1507-119


2015 Kennady Diamonds drills 178 meters of kimberlite at Kelvin.. North lobe.




&10 D1507-120

Kimberley Diamonds Ltd.

2015 KDL subsidiary earns 50% interest in Botswana joint venture. Lerala with Tilwane

Kimberley Diamonds Ltd., June 6, 1p.

Africa, Botswana


&11 D1507-121

Kimberley Diamonds Ltd.

2015 Market update .. Ellendale diamond mine E4 and E9. Lerala funding.

Kimberley Diamonds Ltd., May 26, 3p.

Australia, Africa, Botswana


&12




D1507-122

London Mining Journal

2015 Botswana, diamonds and the Russian connection. John Teeling comments.

London Mining Journal, June 3, 1/2p.

Africa, Botswana

News item - Connemara

&1 D1507-123

Mineweb

2015 Botswana's Okavango diamond sales fall 20%.

Mineweb.com, May 28, 1p.

Africa, Botswana

News item - Okavango

&2 D1507-124

Mining Magazine

2015 Debmarine offshore mining vessel gets heavy lift. Johnson Crane Hire has performed heavy lifting for Gariep off shore vessel.

Mining Magazine, May 29, 1/4p.

Africa, Namibia

News item - Debmarine

&3 D1507-125

Miningmx

2015 Trans Hex caps a good year with 10c/s payout. Kleinzee

Miningmx.com, June 2, 1p.

Africa, South Africa, Angola

News item - Trans Hex

&4 D1507-126

Rockwell Diamonds Inc.

2015 Rockwell shelves equity finance for Remhoogte… in favour of bridging finance. Diacore and Bristow

Miningmx.com, May 29, 1p.



&5 D1507-127

Monax Mining Limited

2015 Kimberlite project - drilling commenced on the Margaret Dam licence 5347.

Monax Mining Limited, June 26, 4p.

Australia


&6 D1507-128

Monax Mining Limited

2015 Kimberlite project update … Margaret Dam tenement for drilling.

Monax Mining Limited, May 29, 1p.

Australia


&7 D1507-129

North Arrow Minerals Inc.

2015 North Arrow updates the Redemption diamond project, Lac de Gras.

North Arrow Minerals Inc., June 2, 1p.



&8 D1507-130


2015 North Arrow reports diamond valuation results from the Qilalugaq project.

North Arrow Minerals Inc., June 9, 1p.



&9 D1507-131


2015 North Arrow announces closing of $ 4 million bought deal.

North Arrow Minerals Inc., May 28, 1p.



&10 D1507-132

Pangolin Diamonds

2015 Update for the MAL157 diamond, Malatswae

Pangolin Diamonds Corporation, June 2, 2p.

Africa, Botswana





Corporation

diamond project, Botswana.

&1 D1507-133

Paragon Diamonds Limited

2015 Paragon Diamonds confident of Mothae approval ahead of Lesotho trip.

Paragon Diamonds Limited, June 18, 2p.

Africa, Lesotho


&2 D1507-134

Petra Diamonds Limited

2015 FY 2015 - market update ( diluted ore)

Petra Diamonds Limited, June 12, 1p.



&3 D1507-135

Petra Diamonds Limited

2015 Diamond miners agree to form a diamond producers association.

Petra Diamonds Limited, May 28, 1p.

Global


&4 D1507-136

Kilalea, D.

2015 Firestone Diamonds plc. Delays and some capex creep at Liqhobong.

RBC Capital Markets, June 23, 4p.

Africa, Lesotho

News item - Firestone

&5 D1507-137

Kilalea, D.

2015 Dominion Diamond Corp. Q1 Preview - a tough quarter with pressure on margins.

RBC Capital Markets, June 3, 6p.



&6 D1507-138


2015 Rockwell turns to the future after closing the Bondeo 140 CC acquisition.

Rockwell Diamonds Inc., June 25, 4p.



&7 D1507-139


2015 Rockwell looks to conclude its recently announced acquisition of Remhoogte/Holsloot.

Rockwell Diamonds Inc., May 27, 1p.



&8 D1507-140


2015 Announces results for the three and twelve months ended February 28, 2015.

Rockwell Diamonds Inc., May 28, 1p.



&9 D1507-141

Scio Diamond Technology Corporation

2015 Scio Diamond's lab grown fancy pink diamonds reach retail market USA.

Scio Diamond Technology Corporation, June 2, 1p.

USA


&10 D1507-142

Stellar Diamonds plc.

2015 Strong revenues from Baoule diamond auction.

Stellar Diamonds plc., May 28, 2p.

Africa, Guinea


&11 D1507-143

Stornoway Diamond Corporation

2015 Stornoway announces fourth quarter and fiscal year 2015 results. Renard

Stornoway Diamond Corporation, June 17, 8p.

Canada, Quebec


&12 D1507- Sunergy, Inc. 2015 Sunergy has Sunergy, Inc., June 25, News item - press release




144 successfully closed the sale of both parcel 2 and 3 as of June 24.

1p. Africa, Liberia, Sierra Leone

&1 D1507-145

Sunrise Resources plc.

2015 Cue (6 ppt slides) Sunrise Resources plc., June 18, 33ppt.

Australia

News item - Sunrise

&2 D1507-146

Marange Resources PVT Ltd.

2015 Marange Resources is now technically insolvent with the companies liabilities exceeding assets by a staggering US$74,7 million.

The Independent ( Zimbabwe), June 22, 1p.

Africa, Zimbabwe

News item - Marange Resources

&3 D1507-147

Trans Hex

2015 Update on Baken, Bloeddrif, Somiluana, Namaqualand ( Kleinzee, Mitchell's Bay, Koingraas

Trans Hex, June 5, 1p. Africa, South Africa, Angola


&4 D1507-148

Trans Hex Group

2015 Trans Hex 'will not overpay' for De Beers unit ( Kimberley Tailings operation).

Trans Hex Group, June 2, 1/2p.



&5 D1507-149

Tsodilo Resources Ltd.

2015 Takes possession of previously recovered diamonds from BK16.

Tsodilo Resources Ltd., June 22, 2p. Photos on website

Africa, Botswana


&6 D1507-150

CBC News.ca

2015 2nd De Beers Snap Lake dissolved solid limit increase OK'd by N.W.T. board. Mackenzie Valley Land and Water Board( 1,000 milligrams per litre for rest of mine's life.)

www.cbc.ca/news, June 25, 1p.



&7 D1507-151

CBC News.ca

2015 Yellowknives Dene lose Drybones Bay diamond exploration appeal. Federal court upholds Debogorski's proposal. ( took 4 years and will still be appealed by Dene)

www.cbc.ca/news, June 26, 1p.


News item - Drybones Bay

&8 D1507-152

Idex Memo

2015 Antwerp Lab discovers and reverses undisclosed temporary color: IGI's findings alarmingly similar to fraudulent treatements exposed by GIA.

www.idexonline, DIB Vol. 30, no. 858, June 16, 6p.

Technology

News item - treatments

&9 D1507-153

The Israeli Diamonds

2015 1.3 million carats a year: the Aikhal

www.israelidiamond.co.il, June 1, 1/4p.

Russia

News item - Alrosa




Industry

diamond mine.

&1 D1507-154

The Israeli Diamonds Industry

2015 Zimbabwe orders Anjin to reinstate 1,100 employees.


Africa, Zimbabwe

News item - Anjin

&2 D1507-155

The Israeli Diamonds Industry

2015 The world's top miners lost $ 156 billion in market value in 2014.


Global


&3 D1507-156

Rough-polished

2015 S & P confirmed Alrosa's rating, improved the outlook to positive.

www.rough-polished.com, June 1, 1/4p.

Russia

News item - Alrosa

&4 D1507-157

Rough-polished

2015 Abbey Chikane's prescription on diamond beneficiation in southern Africa.

www.rough-polished.com, June 1, 1p.

Africa

News item - KP

&5 D1507-158

Rough-polished

2015 DTZ-OZGEO never stopped diamond mining operations in Zimbabwe.


Africa, Zimbabwe


&6 D1507-159

Rough-polished

2015 SA senior diamond valuator fired for probing De Beers - report.




&7 D1507-160

Rough-polished

2015 Botswana Diamonds says new diamondiferous kimberlite expected by year-end. ( Orapa region)


Africa, Botswana

News item - Botswana Diamonds

&8 D1507-161

Rough-polished

2015 Rough, polished diamond prices mismatch driving demand downwards - Botswana minister.


Africa, Botswana

News item - prices

&9 D1507-162

Rough-polished

2015 Debswana says not worried about synthetic diamonds.


Africa, Botswana

News item - Debswana

&10 D1507-163

Rough-polished

2015 Petra expects FY revenue to top $ 430 m.



News item - Petra

&11 D1507-164

Rough-polished

2015 Museum of Named Diamonds opens to focus on 'Diamond


Global

News item - diamonds notable




Story'. [email protected]

&1 D1507-165

Rough-polished

2015 Mustang Resources recovers diamonds in Mozambique. Save River


Africa, Mozambique

News item - Mustang

&2 D1507-166

Rough-polished

2015 Botswana invites bids for new Orapa diamond licences.


Africa, Botswana

News item - legal

&3 D1507-167

Rough-polished

2015 Local community stopped Alrosa's alluvial diamond mining at Malaya Kuonapka.


Russia, Yakutia

News item - Alrosa

&4 D1507-168

Rough-polished

2015 Botswana Diamonds, Alrosa JV identify 'strong' anomaly on Orapa prospecting licence.


Africa, Botswana

News item - Botswana Diamonds, Alrosa

&5 D1507-169

Rough-polished

2015 De Beers rakes in $ 550 m from June sight.


Global


&6 D1507-170

Rough-polished

2015 India's SNZ for rough trading to become operation from 1st July.


India

News item - SNZ

&7 D1507-171

Rough-polished

2015 Brazil Minerals completes first phase of new diamond & gold area geological assessment.



News item - Brazil Minerals

&8 D1507-172

Rough-polished

2015 New head of Alrosa says no need to change the company's strategy.


Russia

News item - Alrosa

&9 D1507-173

Rough-polished

2015 Tsodilo subsidiary Bosoto takes possession of diamonds recovered from BK16.


Africa, Botswana

News item - Tsodilo

&10 D1507-174

Rough-polished

2015 It's time to regulate - and rename - lab grown diamonds.


Technology

News item - synthetics

&11 D1507-175

Rough-polished

2015 Alrosa announces a RUB bn bond repayment.


Russia

News item - Alrosa

&12 D1507-176

Rough-polished

2015 Graff unveils 132 carat Golden Empress yellow

www.rough-polished.com, June 24,

Africa, Lesotho

News item - diamonds notable




diamond. From Letseng 1/4p.

&1 D1507-177

Rough-polished

2015 DDRC finds no synthetic diamond on screening.


India

News item - DDRC

&2 D1507-178

Rough-polished

2015 Trying to fix supply driven diamond pipeline instead of generating demand.


Global

News item - pipeline

&3 D1507-179

Rough-polished

2015 Alrosa held annual general meeting of shareholders in Mirny.


Russia

News item - Alrosa

&4 D1507-180

Rough-polished

2015 Alrosa to increase revenue by 30% in 2015 through exports.


Russia

News item - Alrosa

&5 D1507-181

Rough-polished

2015 De Beers yields to Namibia's demands - report.


Africa, Namibia


&6 D1507-182

Rough-polished

2015 Kennady announces Kelvin sample grade of 2.74 carats per tonne.



News item - Kennady

&7 D1507-183

Rough-polished

2015 Zim not relenting on diamond merger.


Africa, Zimbabwe

News item - legal

&8 D1507-184

Rough-polished

2015 Alrosa to repay $ 1 Bln of debt in autumn ahead of schedule.


Russia

News item - Alrosa

&9 D1507-185

Rough-polished

2015 De Beers 2014 rough diamond sales for beneficiation in host countries up 11%.


Global


&10 D1507-186

Rough-polished

2015 Yakutia lowers target figures for gold mining, diamond manufacturing.


Russia

News item - Yakutia

&11 D1507-187

Rough-polished

2015 Scio Diamond teams with Helzberg to test demand for lab-grown diamonds.


Technology

News item - Scio Diamond

&12 D1507-188

Rough-polished

2015 DTZ-OZGEO ordered to suspend diamond mining.


Africa, Zimbabwe


&13




D1507-189

Rough-polished

2015 Botswana Resource sector conference roars into life.


Africa, Botswana


&1 D1507-190

Rough-polished

2015 Alrosa president to attend 2015 president's meeting … World Federation of Diamond Bourses.


Russia

News item - Alrosa

&2 D1507-191

Rough-polished

2015 VIP diamond buyers resist De Beers pricing that boosted profits.

www.rough-polished.com, May 26, 1/4p.

Global


&3 D1507-192

Rough-polished

2015 What it will take for the synthetic diamond industry to be ( un) successful.


Technology

News item - synthetics

&4 D1507-193

Rough-polished

2015 Peregrine Diamonds Ltd. Joined the Diamond Bourse of Canada and is being represented by Dr. Jennifer Pell.


Canada

News item - Peregrine

&5 D1507-194

Rough-polished

2015 Head of Yakutia and Alrosa president held a joint meeting.


Russia

News item - Alrosa

&6 D1507-195

Rough-polished

2015 DiamondCorp loss widens, mining starts at Lace mine.



News item - DiamondCorp

&7 D1507-196

Rough-polished

2015 Lucara readies for first exceptional stone tender in Botswana.


Africa, Botswana

News item - Lucara

&8 D1507-197

Rough-polished

2015 New Namibia, De Beers sales agreement to come into force next month.


Africa, Namibia


&9 D1507-198

Rough-polished

2015 Changes are shaping the world's diamond market.


Global

News item - markets

&10 D1507-199

Rough-polished

2015 JPMorgan reduces Alrosa shares rating to 'hold', raises forecast cost by 66%.


Russia

News item - Alrosa

&11 D1507-200

Rough-polished

2015 Sight okay, retail not at all.

www.rough-polished.com, May 29, 1p.

Global

News item - prices