Optical Calcite Bear Eating Fish. This Optical Calcite was mined from the Norcross-Madagascar (NMG) Optical Calcite quarry. You will receive 25 pieces of Optical Calcite Bear Eating Fish (approx weight: 1.96lb/pc), similar to what is photographed with this order. Great Gem Decor. $269/pc. Discounts available for volume purchasing. It's better to buy your Optical Calcite bear eating fish from Madagascar Minerals, your direct source of Optical calcite. Please, call a Madagascar Minerals® sales representative for more information (520) 882-8884.