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15 Cards in this Set
- Front
- Back
|
quartz |
Hardest |
|
|
gypsum |
sofest |
|
|
olivine |
olive green |
|
|
magnetite |
magnetic |
|
|
ryrite |
fools gold |
|
|
calcite |
reacts to acid |
|
|
galena |
heavy silver cube |
|
|
biotite |
flat+black |
|
|
muscovite |
flat and silver |
|
|
henatite |
red-brown |
|
|
halite |
salty |
|
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augite |
dark and chunky |
|
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hornblend |
dark and splintery |
|
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feildspar |
no idea |
|
|
potassum |
pink |
