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Minerals521

15 minerals w/ description

QuestionAnswer
Conchoidal fracture, scratches glass, 6 sided crystal quartz
green, glassy, granular crystals, olivine
2 cleavages at 90 grene/black pyroxene
pink, blocky, 2 cleavages orthoclase
white striations on clevage faces plagioclase
small needle like crystals hornblende
black, micaeous (peels off in sheets) muscovite
fools gold, cubic crystals pyrite
metallic, red brown streak hematite
magnetic, black magnetite
reacts with HCl, 3 cleavages not at 90 calcite
metallic, silver, heavy, cubic cleavage galena
scratches with fingernail gypsum
tastes salty, cubic cleavage halite
Created by: bap521
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