Item number: MINS1824 Format: 70 (the sample fits or fills up the box of 37x37x18 mm. Sample might be little higher) Size: 28x24x15 mm Crystal size (max.): 7 mm Weight: 9.8 g Locality: San Francisco Mine, (Cerro Prieto Mine), Cerro Prieto, Cucurpe, Municipal de Cucurpe, Sonora, Mexico