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Question: Describe 2 of the stations from your minerals lab.

Answer: … … …

Turn In:Classifying Items

Minerals Lab

Mineral Id LAB review

Station1- The Dark Side

There were 6 different minerals in this set

Number

Mineral

1 Hornblende

2 Biotite

3 Magnetite

4 Graphite

5 Hematite

6 AugiteDifferent minerals can be similar in color!

Station 2: Varieties of SiO2

There was only 1 mineral in this set - quartz

A single mineral can be a variety

of colors!

Station 3: Mellow Yellow

There were 3 minerals in this set – native copper, pyrite, sulfur

Number

Mineral

1 Sulfur

2 Pyrite

3 Copper

A few minerals have a unique color!

Station 4: Streak – Powder Power

Mineral Number

Apparent Color

Streak Color

Mineral Name

1 Black Reddish brown

Specular Hematite

2 Black Reddish brown

Hematite

3 Gold Black Pyrite4 Pinkish

OrangeNo streak Feldspar

5 Black Black Graphite6 Pink No streak Rose Quartz

Streaking is a reliable way of identifying similar-appearing minerals!

Station 5: Luster – Shine On

Mineral

Number

Luster (circle one)

Luster (if non-

metallic)

Mineral

1 metallic Specular Hematite

2 non-metallic Earthy/dull

Sulfur

3 non-metallic Vitreous/ glassy

Quartz

4 non-metallic Vitreous/ glassy

Biotite

5 metallic Pyrite6 metallic Hematite7 non-metallic Pearly TalcLuster is the quality of light reflected off a

mineral.

Station 6: Cleavage-Them’s the Breaks

Mineral #

Sketch of Miner

al

Sketch of

Smallest piece

Mineral Name

1 --------------

do not attempt to cleave this

mineral-----------------------

--

Quartz

2Halite

3_______ ________ Biotite

4_______ ________ Muscovite

5

Calcite

Cleavage is when a mineral naturally breaks along a flat surface.

Station 7: Hardness-Let’s be Abrasive

Mineral Number

Hardness

Mineral

A 7 QuartzB 1 TalcC 6 FeldsparD 3 CalciteE 4 Flourite

Moh’s Scale is a measure of hardness.

Station 8: Optical Properties- To See or Not to See

Miner

al Numb

er

Optical Property

Displayed

Mineral

1 Translucent Quartz2 Transparent

& Double Refraction

Calcite

3 Translucent & Fiber Optics

Ulexite

4 Transparent Gypsum5 Opaque Muscovite

Station 9: Calcite Test – The Acid Test Reactants Products

2 HCl + CaCO3 CaCl2 + 2 H2O + CO2 (g)

List the five elements present on the left side of the equation. H, Cl, Ca, C, O What is the formula for hydrochloric acid? HCl Calcite is one of the reactants. What is the formula for calcite? CaCO3  On the right side of the equation, what five elements are present? H, Cl, Ca, C, O

On the right side of the equation, what three compounds are produced? CaCl2, H2O, CO2  One of the products is a compound called Calcium Chloride. What is its formula? CaCl2  Why does the calcite fizz in acid? CO2 gas is being released

Mineral Number

Fizzes?

Mineral

1 No Muscovite

2 No Quartz3 Yes Calcite4 No Gypsu

m

Station 10: Definitions – Play by the Rules

Sample Number

Mineral? (yes or no)

Reason why you classified it as a mineral or not a mineral.

1 No Organic (made from a living thing) - wood

2 No Man-made – glass

3 No Not made of crystals, man-made (metal)

4 No Organic (made from a living thing) (coal)

5 No Not a uniform composition (rock)

6 No Not a uniform composition (rock)

7 Yes Specular Hematite

8 Yes Feldspar

All minerals have 5 properties: natural, same composition, solid, inorganic,

and crystalline.

Station 11: Density

Sample

Letter

Density Identity

A  3.05 QuartzB  5.25 PyriteC  4.5 HematiteD  4.5 Specular

HematiteE  2.75 Hornblende

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