Optical Calcite Bear Eating Fish. This Optical Calcite was mined from the Norcross-Madagascar (NMG) Optical Calcite quarry. You will receive 5 pieces of Optical Calcite Bear Eating Fish (approx weight: 1.96lb/pc), similar to what is photographed with this order. Great Gem Decor. 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.