The exposed crater is located in Western Australia

At the time of its discovery

Its dimensions are 54x47x20mm

This is a superb looking individual cut fragment of the  Gold Basin meteorite weighing 24

Color: Color Change Green to Purple

Biotite Mica Book | Black Crystal | 48.8 Grams | Ontario, Canada | SO24 IAB-MG The exposed crater is locatedThis 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