MN838 Sample ID MN838 • Cabinet T Kyanite 13.9cm W x 10.1cm H x 5.6cm D • 1404g Sample TypeMineralColorGreen and WhiteLusterDull StreakWhiteCleavage/FractureFractureSpecific Gravity2.84 Geographic Location/DateChesterfield MA Mohs Hardness 4 Tan kyanite with green deposits throughout it. Very minimal luster. Description of Mohs scale here