MN709 Sample ID MN709 • Cabinet H Fluorite with Copper Stains 10.4cm W x 14.5cm H x 5.66cm D • 1544g Sample TypeMineralColorGreen, White, PurpleLusterVitreous StreakWhiteCleavage/FracturePerfect / ConchoidalSpecific Gravity2.83 Geographic Location/DateWestmoreland, New Hampshire Mohs Hardness 4 A large specimen of fluorite. This piece is green in color, with some spots white, and some spots purple. The purple is caused by copper staining. The specimen has a large brown matrix. Description of Mohs scale here