Geology

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70 Terms

1
<p>gold</p>

gold

metal

<p>metal</p>
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2

sulfur

non-metal

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3

graphite

non-metal

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4
<p>Pyrite</p>

Pyrite

sulfide crystal: diamond - коцкички

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5
<p>Marcasite</p>

Marcasite

sulfide crystal: rhombic - локумчиња

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6
<p>Galena</p>

Galena

sulfide crystal: diamond - коцкички

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7

Pyrrhotite

sulfide

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8

Chalcopyrite

sulfide

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9

fluorite

halide

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10

halite

halide

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11
<p>magnetite</p>

magnetite

oxide crystal: diamond color: gray, black with brownish tint in reflected sun Luster: Metallic Streak: Black Cleavage: Indistinct, parting on, very good magnetic strongly attracted to magnets

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12

hematite

oxide

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13

silica

oxide

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14

chalcedony

oxide

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15

opal

oxide

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16

cassiterite

oxide

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17

lepidocrockite

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18

goethite (limonite)

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19

manganomelane

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20
<p>calcite</p>

calcite

carbonate vitreous luster - resembles the luster of glass usually white, but also colorless, gray, red, green, blue, yellow, brown, orange white streak basic soft forms bubbles with acid perfect cleavage - cleave without leaving any rough surfaces; a full, smooth plane is formed where the crystal broke

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21
<p>clay shale</p>

clay shale

color: black, grey, but brown, off-white, red, green, and blue are common soft - can be split easily into fragile slabs acid test doesn't help, some shales will react with acid and others won’t Fine-grained – Grains are too small to see with the naked eye

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22
<p>claystone</p>

claystone

may be any color, but is generally greenish gray to grayish black relatively soft

<p>may be any color, but is generally greenish gray to grayish black relatively soft</p>
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23
<p>conglomerate</p>

conglomerate

has little pebbles in it

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24
<p>feldspar</p>

feldspar

have cleavage hard: can't make scratch acid: nothing happens

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25
<p>gabbro</p>

gabbro

dark colored it's hard, it can scratch glass gabbro is made out of bigger pieces then basalt, which has smaller ones can be confused with basalt, the difference is that gabbro has crystals in it gabbro is a coarse grained rock, basalt is a fine grained rock

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26
<p>glauconite</p>

glauconite

light green streak Color: Blue green, green, yellow green can be confused with chlorite

<p>light green streak Color: Blue green, green, yellow green can be confused with chlorite</p>
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27
<p>granite</p>

granite

grainy structure hard identifying - look for rocks with crystals. Look for shiny, flat surfaces within the rock—these are the crystal faces

<p>grainy structure hard identifying - look for rocks with crystals. Look for shiny, flat surfaces within the rock—these are the crystal faces</p>
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28
<p>graywacke</p>

graywacke

greenish-gray color

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29
<p>gypsum</p>

gypsum

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30
<p>linear orthogneis</p>

linear orthogneis

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31
<p>loess</p>

loess

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32
<p>lydite</p>

lydite

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33
<p>lydite</p>

lydite

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34
<p>limestone</p>

limestone

makes bubbles with acid limestone shouldn't be gray granular texture color: It can be yellow, white, or gray limestone is usually gray, but it may also be white, yellow or brown. It is a soft rock and is easily scratched

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35
<p>marleystone</p>

marleystone

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36
<p>lymestone</p>

lymestone

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37
<p>mica shist</p>

mica shist

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38
<p>paleorhyolite</p>

paleorhyolite

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39
<p>paragneis</p>

paragneis

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40
<p>quartzitic sandstone</p>

quartzitic sandstone

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41
<p>quartz</p>

quartz

no cleavage Color: Colorless through various colors to black Luster: Vitreous – waxy to dull when massive Streak: White

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42
<p>sandstone</p>

sandstone

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43
<p>sandstone</p>

sandstone

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44
<p>stromactitic magmatite</p>

stromactitic magmatite

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45
<p>syenite</p>

syenite

texture: granular, and these rocks differ from granite only by the absence or scarcity of quartz color: pale colored, grey and pink fractional crystallization

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46
<p>trachyte</p>

trachyte

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47
<p>travertine</p>

travertine

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48
<p>haematite</p>

haematite

color: red crystal: rhombic

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49
<p>fluorite</p>

fluorite

halide

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50
<p>limonite</p>

limonite

Luster: Earthy Color: Various shades of brown and yellow Streak: Yellowish brown Cleavage: Absent

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51
<p>aragonite</p>

aragonite

Color: White, red, yellow, orange, green, purple, grey, blue and brown Cleavage: Distinct, imperfect, good Luster: Vitreous, resinous on fracture surfaces Streak: White - unrecognizable

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52
<p>magnesite</p>

magnesite

color: Colorless, white, pale yellow, pale brown, faintly pink, lilac-rose, grayish, yellowish, brownish, rarely colorless cleavage: perfect luster: Vitreous but also dull, earthy, chalky, rarely vitreous streak: white can be hard to identify and is often confused with howlite makes bubbles with acid

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53
<p>siderite</p>

siderite

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54
<p>dolomite</p>

dolomite

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55
<p>anhydrite</p>

anhydrite

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56
<p>apatite</p>

apatite

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57
<p>olivine</p>

olivine

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58
<p>garnet</p>

garnet

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59
<p>tourmaline</p>

tourmaline

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60
<p>muscovite</p>

muscovite

color: white, transparent

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61
<p>biotite</p>

biotite

color: black

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62
<p>chlorite</p>

chlorite

color: green like

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63
<p>kaolinite</p>

kaolinite

phyllosilicate

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64
<p>montmorillonite</p>

montmorillonite

phyllosilicate

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65
<p>illite</p>

illite

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66
<p>serpentine</p>

serpentine

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67
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68
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69

Analcime

tectosilicates Color: White, colorless, gray, pink, greenish, yellowish Cleavage: Very poor luster: vitreous

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70
<p>Leucite</p>

Leucite

tectosilicates Color: White to grey White streak vitreous luster cleavage: very poor

<p>tectosilicates Color: White to grey White streak vitreous luster cleavage: very poor</p>
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