Learn about Fluorite
calcium fluoride with a dazzling color range, cubic and octahedral crystals, and UV fluorescence; prized by collectors for Blue John banding.Fluorite from Cave-in-Rock Mining Sub-District
Cave-in-Rock Mining Sub-District fluorite — Illinois locality famed for vivid color varieties and sharp crystals, rich collecting history and associations.Cave-in-Rock Mining Sub-District
Comprehensive guide to Cave-in-Rock Mining Sub-District
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