Minerals

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27 Terms

1
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Pyrite (fool's gold - shiny, golden, yellow)

FeS2

<p>FeS2</p>
2
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Pyrrhotite (brassy, bronze, dark brown)

Fe1-xS

<p>Fe1-xS</p>
3
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Pentlandite (pinkish, yellow, bronze) - often found with pyrrhotite

(Fe,Ni)9S8

<p>(Fe,Ni)9S8</p>
4
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Chalcopyrite (brassy, yellow, iridescent tarnish)

CuFeS2

<p>CuFeS2</p>
5
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Galena (silver, metallic luster) - often found with sphalerite

PbS

<p>PbS</p>
6
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Sphalerite (dark brown/grey, yellow, reddish, resinous luster) - often found with galena

(Fe,Zn)S

<p>(Fe,Zn)S</p>
7
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Arsenopyrite (silvery white)

FeAsS

<p>FeAsS</p>
8
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Stibnite (lead grey, bluish black)

Sb2S3

<p>Sb2S3</p>
9
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Gold

Au

<p>Au</p>
10
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Bornite (peacock, iridescent tarnish)

Cu5FeS4

<p>Cu5FeS4</p>
11
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Cuprite (deep red)

Cu2O

<p>Cu2O</p>
12
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Malachite (green)

Cu2CO3(OH)2

<p>Cu2CO3(OH)2</p>
13
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Molybdenite (silvery grey)

MoS2

<p>MoS2</p>
14
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Nickeline (pale red)

NiAs

<p>NiAs</p>
15
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Cobaltite (reddish silver, violent grey)

CoAsS

<p>CoAsS</p>
16
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Ilmenite (iron black, brownish)

FeTiO3

<p>FeTiO3</p>
17
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Cassiterite (dark brown, reddish)

SnO2

<p>SnO2</p>
18
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Wolframite (brownish, black)

WO4

<p>WO4</p>
19
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Magnetite (black, grey tint)

Fe3O4

<p>Fe3O4</p>
20
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Hematite (rust red, metallic grey)

Fe2O3

<p>Fe2O3</p>
21
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Chromite (black grainy, mafic rocks)

FeCr2O4

22
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Azurite (bright blue)

Cu3(CO3)2(OH)2

23
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Barite (white to pinkish)

BaSO4

24
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Magnesite (chalky)

MgCO3

25
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Chrysocolla (powdery blue)

Copper silicate

26
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Bauxite (spheres, red)

Al(OH)3

27
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Cinnabar (red to dark red)

HgS