Minerals on the AS/A level Data Sheet AS-A level Geology Name that Mineral Minerals on the AS/A level Data Sheet Click on the Clue, Answer and Next buttons to navigate.
Identify this mineral 1 2 good cleavages Just scratched by copper coin High density for a Non-metallic mineral Vitreous lustre Barites Clues Answer Next
Terminated by pyramids Identify this mineral 2 Conchoidal fracture Not scratched by steel Vitreous lustre Hexagonal crystals Terminated by pyramids Quartz Clues Answer Next
Identify this mineral 3 4 good cleavages Not scratched by copper coin Cubic or octahedral crystals Fluoresces in UV light Fluorite Clues Answer Next
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 Next
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 Next
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 Next
Identify this mineral 7 Kidney shaped masses Not scratched by steel nail Cherry red streak Metallic lustre Haematite Clues Answer Next
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 Next
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 Next
Identify this mineral 10 1 good cleavage Easily scratched by copper coin Black colour Pearly lustre Biotite Mica Clues Answer Next
Identify this mineral 11 No cleavage Not scratched by steel nail Olive green colour Vitreous lustre Olivine Clues Answer Next
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 Next
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 Next
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 Next
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 Next
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
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 Next
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 Next
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 Next
Answers Barites 11. Olivine Quartz 12. Iron Pyrite Fluorite 13. Chiastolite/Andalusite Augite 14. Orthoclase Feldspar Galena 15. Gypsum Plagioclase feldspar 16. Muscovite Mica Haematite 17. Chalcopyrite Garnet 18. Calcite Halite 19. Hornblende Biotite Mica