1. Minerals on the AS/A level Data Sheet
AS-A level Geology
Name that Mineral
Minerals on the AS/A level Data Sheet
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2. Identify this mineral 1 2 good cleavages Just scratched by copper coin
High density for a
Non-metallic mineral
Vitreous lustre
Barites
Clues
Answer
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3. Terminated by pyramids
Identify this mineral 2
Conchoidal fracture
Not scratched by steel
Vitreous lustre
Hexagonal crystals
Terminated by pyramids
Quartz
Clues
Answer
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4. Identify this mineral 3 4 good cleavages Not scratched by copper coin
Cubic or
octahedral crystals
Fluoresces in UV light
Fluorite
Clues
Answer
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5. Scratches streak plate
Identify this mineral 4
2 good cleavages at 90°
Green/black colour
Scratches streak plate
Vitreous lustre
Prismatic crystals
Augite
Clues
Answer
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6. Scratched by copper coin
Identify this mineral 5
3 good cleavages at 90°
Scratched by copper coin
High density
Metallic lustre
Grey streak
Galena
Clues
Answer
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7. Identify this mineral 6 2 good cleavages at 90°
Not scratched by steel nail
Cream, white, grey colour
Vitreous lustre
Shows multiple twinning
Plagioclase feldspar
Clues
Answer
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8. Identify this mineral 7 Kidney shaped masses Not scratched
by steel nail
Cherry red streak
Metallic lustre
Haematite
Clues
Answer
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9. Not scratched by steel nail Red/brown or grey/green colour
Identify this mineral 8
No cleavage
Not scratched by steel nail
Red/brown or grey/green colour
Crystals have 12 faces
Vitreous lustre
Garnet
Clues
Answer
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10. Just scratched by fingernail
Identify this mineral 9
3 good cleavages at 90°
Vitreous lustre
Soluble in water
Just scratched by fingernail
Halite
Clues
Answer
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11. Identify this mineral 10 1 good cleavage Easily scratched
by copper coin
Black colour
Pearly lustre
Biotite Mica
Clues
Answer
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12. Identify this mineral 11 No cleavage Not scratched by steel nail
Olive green colour
Vitreous lustre
Olivine
Clues
Answer
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13. Not scratched by steel nail
Identify this mineral 12
No cleavage
Not scratched by steel nail
Greenish black streak
Metallic lustre
Brass yellow colour
Iron Pyrite
Clues
Answer
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14. Identify this mineral 13 Creamy white/pinkish colour Not scratched
by steel nail
Needle shaped crystals square in cross section
Vitreous lustre
Chiastolite/Andalusite
Clues
Answer
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15. Not scratched by steel nail May show simple twinning
Identify this mineral 14
2 good cleavages at 90°
Not scratched by steel nail
May show simple twinning
Pink coloured
Vitreous lustre
Orthoclase Feldspar
Clues
Answer
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16. Scratched by fingernail Silky/vitreous lustre
Identify this mineral 15
1 ogod cleavage
Scratched by fingernail
White streak
Silky/vitreous lustre
Fibrous appearance
Gypsum
Clues
Answer
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17. Pale yellow, green, silvery of straw colour
Identify this mineral 16
1 good cleavage
Scratched easily
by copper coin
Pale yellow, green, silvery of straw colour
Pearly lustre
Muscovite Mica
Clues
Answer
Next

18. Identify this mineral 17 No cleavage
Scratched by steel nail but not by copper coin
Black streak
Tarnishes to peacock colours
Metallic lustre
Chalcopyrite
Clues
Answer
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19. Scratched by copper coin
Identify this mineral 18
3 good cleavages, not at 90º
Scratched by copper coin
but not by fingernail
Reacts with dilute
hydrochloric acid
Vitreous lustre
Calcite
Clues
Answer
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20. Dark brown, green or black in colour
Identify this mineral 19
2 good cleavages at 60°/120°
Not scratched
by copper coin
Dark brown, green or black in colour
Vitreous lustre
Hornblende
Clues
Answer
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21. Answers Barites 11. Olivine Quartz 12. Iron Pyrite
Fluorite Chiastolite/Andalusite
Augite Orthoclase Feldspar
Galena Gypsum
Plagioclase feldspar Muscovite Mica
Haematite Chalcopyrite
Garnet Calcite
Halite Hornblende
Biotite Mica