MN410 Sample ID MN410 • Cabinet F Zoisite 9.389cm W x 5.133cm H x 6.055cm D • 374g Sample TypeMineralColorGrayLusterVitreous to pearly Streakwhite to ColorlessCleavage/FracturePerfect/unevenSpecific Gravity3.169 Geographic Location/DateConway MA Mohs Hardness 7 Gray prismatic crystals with deep vertical striations. Opaque mineral with pearly cleavage faces. Description of Mohs scale here