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intro to geology lab exam #1
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30 Terms
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1
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Milky Quartz
Luster: non-metallic
Hardness: 7
Breakage: fracture
Streak: no streak
Color: White
2
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Rose Quartz
Luster: non-metallic
Hardness: 7
Breakage: fracture
Streak: no streak
Color: pink
3
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Smoky Quartz
Luster: non-metallic
Hardness: 7
Breakage: fracture
Streak: no steak
Color: grey
4
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Amethyst
Luster: non-metallic
Hardness: 7
Breakage: fracture
Streak: no streak
Color Purple
5
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Chert
Luster: non-metallic
Hardness: 7
Breakage: conchoidal fracture
streak: no streak
Color: light grey
6
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Flint
Luster: non-metallic
Hardness: 7
Breakage: conchoidal fracture
Streak: no streak
Color: dark grey or black
7
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Potassium Feldspar
Luster: non-metallic
Hardness: 7
Breakage: cleavage
Streak: no streak
Color: peachy
8
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Plagioclase Feldspar
Luster: non-metallic
hardness: 7
Breakage: cleavage
Streak: no streak
Color: grey/greenish
9
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Copper
Luster: Metallic
Hardness: 3
Breakage: Fracture
Streak: brown or copper
Color: brown or Copper
Oxides Green
10
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Bornite
Luster: Metallic
Hardness: 4
Breakage: fracture
Streak: grey
Color: grey
11
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Calcite
Luster: Non-metallic
Hardness: 4
Breakage: Cubic Cleavage
Streak: white
Color: whiteish grayish
Reacts to dirty clothes
12
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Muscovite
Luster: non-metallic
Hardness: 1
Breakage: cleavage
Streak: pale beige
Color: Silver/tan/beige
Thin Sheets
13
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Biotite
14
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Hornblende
15
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Olivine
16
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Garnet
17
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Barite
high specific gravity
18
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Chalcoprite
19
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Corundum
6 sided
20
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Fluorite
21
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Galena
22
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Graphite
23
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Gypsum
24
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Halite
25
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Kaolinite
26
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Magnetite
27
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Pyrite
28
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Sulfur
29
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Talc
30
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Sphalerite