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Minerals > Minerals > Flashcards

Minerals Flashcards

1
Q

Sulfur

A

a) S b) Native Element c) Smell and yellow color

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2
Q

Graphite

A

a) C b) Native Element c) Greasy feel, black streak

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3
Q

Copper

A

a) Cu b. Native Element c. reddish color, hackly fracture, high specific gravity, and malleability

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4
Q

Chalcocite

A

a) Cu2S b. Sulfide c. Lead-gray color and sectility

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5
Q

Bornite

A

a. Cu5FeS4 b. Sulfide c. peacock color or bronze coor with a purple tarnish

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6
Q

Galena

A

a. PbS b. Sulfide c. High specific gravity, cubic cleavage, softness, lead-gray streak

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7
Q

Sphalerite

A

a. ZnS b. Sulfide c. Smell, resinous luster, reddish-brown streak

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8
Q

Chalcopyrite

A

a. CuFeS2 b. Sulfide c. Brass-yellow color, greenish-black streak. Softer than steel (pyrite is stronger) and Brittler than gold

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9
Q

Pyrrhotite

A

a. Fe1-xS b. Sulfide c. Massive nature, bronze color, and magnetism

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10
Q

Cinnabar

A

a. HgS b. Sulfide c. Red color, scarlet streak, high specific gravity, and rhmobohederal cleavage

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11
Q

Realgar

A

a. AsS b. Sulfide c. Red color, resinous luster, orange-red streak

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12
Q

Orpiment

A

a. As2S3 b. Sulfide c. Yellow-orange color, foliated, perfect cleavage

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13
Q

Stibnite

A

a. Sb2S3 b. Sulfide c. Easy fusibility, bladed habit, perfect cleavage in one direction, lead-gray color, soft black streak. Fusible in a candle flame

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14
Q

Pyrite

A

a. FeS2 b. Sulfide c. Various isometric crystals. Harder than chalcopyrite.

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15
Q

Marcasite

A

a. FeS2 b. Sulfide c. Pale yellow color, fibrous.

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16
Q

Arsenopyrite

A

a. FeAsS b. Sulfide c. Silver-wite color, streaks black.

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17
Q

Molybdenite

A

a. MoS2 b. Sulfide c. Like graphite, but with higher specific gravity. Has a slight blue tone. Green streak.

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18
Q

Skutterrudite

A

a. (Co,Ni)As3 b. Sulfide c. Tin-white to silver-gray color. Shiny!

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19
Q

Tetrahedrite

A

a. Cu12Sb4S13 b. Sulfide c. Tetrahedral crystal habit, no cleavage, steel gray or silver color

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20
Q

Halite

A

a. NaCl b. Halide c. Tastes salty, perfect cubic cleavage, less bitter than sylvite

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21
Q

Sylvite

A

a. KCl b. Halide c. Bitter taste, perfect cleavage, cubic crystals

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22
Q

Flourite

A

a. CaF2 b. Halide c. Cubic crystal and octahedral cleavage and can be scratched with a knife

23
Q

Cryolite

A

a. Na3AlF6 b. Halide c. Pseudocubic parting, white color.

24
Q

Magnetite

A

a. Fe3O4 b. Oxide c. Strong magnetism, black color, hardness.

25
Q

Chromite

A

a. FeCr2O4 b. Oxide c. Submetallic luster

26
Q

Corundum

A

a. Al2O3 b. Oxide c. Very hard, high specific gravity, Infusible, Barrel shaped crystals

27
Q

Hematite

A

a. Fe2O3 b. Oxide c. Red streak in both forms

28
Q

Goethite (Limonite)

A

a. aFeO(OH) b. Oxide c. Yellow-brown streak

29
Q

Ilmenite

A

a. FeTiO3 b. Oxide c. No magnetism, black to brownish red streak

30
Q

Pyrolusite

A

a. MnO2 b. Oxide c. Black streak and low hardness

31
Q

Brucite

A

a. Mg(OH)2 b. Oxide c. Foliated, light color, pearly luster. Inelastic

32
Q

Ulexite

A

a. NaCaB5O6(OH)6-5H20 b. Oxide c. Soft with silky luster, fiberopti c.

33
Q

Romanechite (psilomelane)

A

a. BaMn2+Mn84+016(OH)4 b. Oxide c. Botyryoidal form. Dendritic pattern

34
Q

Calcite

A

a. CaCO3 b. Carbonate c. Effervesce readily in cold dilute HCL. Not very hard. Light color. Rhombohedral Cleavage

35
Q

Magnesite

A

a. MgCO3 b. Carbonate c. Dissolves in hot HCL. Looks like Chert. Lack of calcium

36
Q

Siderite

A

a. FeCO3 b. Carbonate c. Only dark brown carbonate. hot HCL effervences

37
Q

Rhodochrosite

A

a. MnCO3 b. Carbonate c. Pink color, rhombohedral cleavage. Infusible. Soluble in hot HCL

38
Q

Smithsonite

A

a. ZnCO3 b. Carbonate c. Soluble in cold HCL. Harder than calcite. Has Zin c.

39
Q

Dolomite

A

a. CaMg(CO3)2 b. Carbonate c. Cold dilute HCL some dissolution, but mostly in hot. Often flesh-pink color

40
Q

Aragonite

A

a. CaCO3 b. Carbonate c. Higher specific gravity than Calcite. No Rhombohedral cleavage. Effervesces in cold HCl

41
Q

Strontianite

A

a. SrCO3 b. Carbonate c. High specific gravity. Poor cleavage

42
Q

Cerussite

A

a. PbCO3 b. Carbonate c. Effervesces in nitric acid, white color, high specific gravity, and cleavage

43
Q

Azurite

A

a. Cu3(CO3)2(OH)2 b. Carbonate c. Azure blue color

44
Q

Malachite

A

a. Cu2CO3(OH)2 b. Carbonate c. Bright green color. Soluble in HCL, yielding a green solution.

45
Q

Apatite

A

a. Ca5(PO4)3(F,Cl,OH, CO3) b. Phosphate c. Crystals, colors, and hardness. Prominent pyramidal termination of its crystal and softer than a knife’s blade

46
Q

Wavelite

A

a. Al3(PO4)2(OH)3-5H20 b. Phosphate c. Radiating Globular Aggregates

47
Q

Lazulite

A

a. (Mg,Fe)Al2(PO4)2(OH)2 b. Phosphate c. Blue color

48
Q

Amblygonite

A

a. LiAlFPO4 b. Phosphate c. Similar to feldspar, but angles different

49
Q

Barite

A

a. BaSO4 b. Sulfate c. High specific gravityTabular crystals

50
Q

Celestite

A

a. SrSO4 b. Sulfate c. Chemical test for strontium, lighter than barite.

51
Q

Anglesite

A

a. PbSO4 b. Sulfate c. High specific gravity, similar to cerussite, does not effervesce in nitric acid

52
Q

Anhydrite

A

a. CaSO4 b. Sulfate c. Three cleavage at right angles. Harder than gypsum.

53
Q

Gypsum

A

a. CaSO4-2H20 b. Sulfate c. Softness and three unequal cleavages

54
Q

Wulfenite

A

a. PbMoO4 b. Molybdate c. Square tabular color, orange to yellow color.

Minerals (1 decks)

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