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Ships within 48 hours · Estimated delivery Sep 14 - Sep 19
85 Grams TW)
Size Small: 12-24 mm
Origin: Mined in Miners Bay
Product ID: TZIM6821
Size: 11x9mm
Biotite Mica Book | Black Crystal | 46.8 Grams | Ontario, Canada | SO24 Celestite 85 Grams TW)This is a beautiful black Biotite crystal book from the Calcite Vein Dikes of the Grenville Geological Province Ontario, Canada. This specimen is a great example of both the classic crystal shape and attractive dark coloration. Biotite is rarely considered a valuable mineral specimen, but it can accompany other minerals and compliment them. In Bancroft, Ontario, Biotite forms large crystals with green apatite and hornblende. Single large plates or
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