Biotite Mica Book | Black Crystal | 48.8 Grams | Ontario, Canada | SO24

This is a beautiful black Biotite crystal book from the Calcite Vein-Dikes of the Grenville Geological Province Ontario, Canada. This biotite has classic crystal shape and attractive dark black coloration. This specimen is a great example of both.

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 "books" of biotite can grow to considerable size and can make impressive mineral specimens.

Name: Biotite Mica
Specimen Size:  Large Cabinet-Sized
Dimensions:  105x72x5 mm / 4.2x2.8x0.2 inches
Weight:  48.8 Grams / 1.7 Ounces
Origin:  Ontario, Canada

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