MN692 Sample ID MN692 • Cabinet H Calamine 3.2cm W x 5.1cm H x 1.4cm D • 48g Sample TypeMineralColorTeal, GreenLusterVitreous StreakDark GreenCleavage/FracturePerfect/UnevenSpecific Gravity2.4 Geographic Location/DateAltenberg, Germany Mohs Hardness 5 Two specimens of Calamine or Hemimorphite. The larger piece is the representative. Both are quite small, with a dark green matrix. The larger of the two specimens has a group of botryoidal crystals. The specific gravity is 2.4, about one smaller than it should be. Description of Mohs scale here