Its dimensions are 54x47x20mm

At the time of its discovery

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

Its dimensions are 15x12x2 mm and it has a crusted edge

Dellen impactites were divided into three impactite groups: (i) suevitic impact breccias with lithic and melt clasts

Biotite Mica Book | Black Crystal | 48.8 Grams | Ontario, Canada | SO24 IAB-MG Its dimensions are 54x47x20mmThis 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