3.5.2: Cleavage, Fracture, and Parting
Many fluorite cleavage fragments are perfect octahedra, and many cubic fluorite crystals are missing corners because of the mineral's cleavage. All fluorite is essentially CaF 2 but color varies due to minor chemical impurities. Purple is the most common color, but the other hues in this figure are quite common too. 3.69 Fluorite
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