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EOSC 220: Rocks 2 know > fucking rocks > Flashcards

fucking rocks Flashcards

1
Q

Covellite

A

CuS

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2
Q

Chalcopyrite

A

CuFeS2

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3
Q

Pyrrhotite

A

(Fe(1-X)S)

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4
Q

Pyrite

A

FeS2

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5
Q

Marcasite

A

FeS2

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6
Q

Arsenopyrite

A

FeAsS

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7
Q

Chalcosite

A

Cu2S

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8
Q

Hematite

A

Fe2O3

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9
Q

Corundum

A

Al2O3

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10
Q

Bauxite

A

complex of aluminous hydroxides

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11
Q

Ilmenite

A

FeTiO3

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12
Q

Magnetite

A

Fe3O4

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13
Q

Rutile

A

TiO2

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14
Q

Chromite

A

FeCr2O4

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15
Q

Goethite

A

FeO(OH))

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16
Q

Pentlandite

A

(Fe, Ni)9S8

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17
Q

What looks like a peacock

A

covellite

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18
Q

What has a greenish brown streak and looks like cheap gold spraypaint

A

Chalcopyrite

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19
Q

What is the hardness of covellite

A

1.5 - 2

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20
Q

what is the streak of chalcopyrite

A

greenish

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21
Q

what is the colour of pyrrhotite

A

bronzish

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22
Q

What is the hardness if pyrrhotite

A

low hardness

23
Q

What is the streak of pyrite

A

greenish black

24
Q

What is described as fools gold

A

pyrite

25
Q

What is the habit of pyrite

A

cubic

26
Q

What is the crystal that looks like a metallic fishscale

A

marcasite

27
Q

What crystal looks like pyrite but darker

A

arsenopyrite

28
Q

What is the specific gravity of arsenopyrite

A

high specific gravity

29
Q

What is the hardness of chalcosite

A

very soft

30
Q

What is the tarnish that may be in chalcosite

A

purplish

31
Q

What is the rock that has a greenish streak, is massive and may be a bit purple

A

Chalcosite

32
Q

What rock looks “lavaish”

A

Hematite

33
Q

What is the streak of hematite

A

red

34
Q

What colour is hematite

A

black to red with maybe a but of steel grey

35
Q

what is special about hematite

A

magnetic dusk

36
Q

What is the hardness of corundum

A

9

37
Q

What is the shape that corundum takes and why

A

hexagons because it had a trigonal crystal system

38
Q

What crystal is gonna be hexagon

A

corundum

39
Q

What does bauxite look like

A

reddish orange rock with spots

40
Q

What is the hardness of 1-3

A

bauzite

41
Q

What streak is ilmenite

A

black

42
Q

What is special about ilmenite

A

It is weakly magnetic meaning that a magnet will skip when dragged across it

43
Q

What is magnetites streak

A

black

44
Q

What is magnetites habit

A

either cubis or massive

45
Q

What is rutiles lustre

A

submetallic to adamentine

46
Q

What are the ways rutile might show up

A

Weird tabular looking things kinda purply red, might be clear rock with gold wires in it, might be a dark red rock with orangey lines (most likely???????)

47
Q

What is the streak of chromite

A

dark brown

48
Q

What is the lustre of chromite

A

metallic to submetallic

49
Q

What would you describe chromite as

A

darker rock with a bit of lustre

50
Q

What is the colour appearance or goethite

A

dark rock (black) with some orange shit on it

51
Q

What is the streak of goethite

A

ORANGE mf

52
Q

What is the streak of pentlandite

A

light bronze or brown

53
Q

What is the general appearance of pentlandite

A

darker grey rock with some goldish or silver shimmer shit on it

54
Q

Is pentlandite magnetic

A

nope

EOSC 220: Rocks 2 know (7 decks)

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