Powellite 3.38cts Fancy Oval Cut 20.00 x 7.50mm
Is a Calcium Molybdenite with formula: CaMoO4 Hardness is 3.5-4 . Is very popular among mineral collectors for its fluorescence, this gem here has been photograph with normal fluorescent daylight and then with short wave UV light. Cut by Luigi Marini,good proportion and luster,it looks better in reality than in the pictures. From Poona, India. Size:10×7.5×6 mm. Weight:3.38 ct.