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It weighs 189 grams
Approximate weight of each piece is between 12 and 42 grams
CH497 Chrysoprase rough rock
Dimensions at widest points approximately 100 mm x 85 mm x 8 mm thick
BJ139 Polished "Black Jade" A trade name for metamorphosed magnesian tholeiite (basalt)
Polished Bauxite BAU136 #google It weighs 189 gramsBAU136. Bauxite (laterite) rough rock, cut and polished on one side. Dimensions at widest points approximately 100 mm x 80 mm x 40 mm thick. Weighs 528 grams. Bauxite is the main raw material used in the commercial production of aluminium. Large reserves of this stone occur in Western Australia. This specimen is from east of the Darling Ranges just outside the city of Perth.