Crissy's Geology Blog
Monday, February 6, 2012
Mineral Mania!
Hornblende:
Feldspar:
Galena:
Quartz:
Muscovite Mica:
Biotite Mica:
Calcite:
Halite:
Kaolinite:
Pyrite:
Obsidian:
Amethyst:
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