Dimensions: 114x83x50 mm / 4

The Terny astrobleme is a geological formation located in the Cherkasy region of Ukraine

5 Ounces (including box)

A good Fung Shui stone

Approx Weight(per piece):  58 carats incl

Biotite Mica Book | Black Crystal | 46.8 Grams | Ontario, Canada | SO24 Pseudomorph Dimensions: 114x83x50 mm / 4This 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