MN338 Sample ID MN338 • Educational Cabinets Quartz 11.657cm W x 8.129cm H x 9.188cm D • 1108g Sample TypeMineralColorClearLusterVitreous StreakNoneCleavage/FractureConcoidal fractureSpecific Gravity2.61 Geographic Location/Date Mohs Hardness 7 A collection of two. The representative is marked with a star next to its Collection ID label. This "Herkimer Diamond" was donated by the Raney Collection. It has many large clear faces showing the breakage within the crystal. There is some Dark spots visible and one small twinned crystal. Description of Mohs scale here