MN312 Sample ID MN312 • Cabinet E Prehnite 12.134cm W x 6.2cm H x 9.928cm D • 1026g Sample TypeMineralColorLight greenLusterVitreous StreakWhiteCleavage/FractureDistinct cleavage/Uneven fractureSpecific Gravity Geographic Location/DateWestfield MA Mohs Hardness 6 Light green tabular crystals (some coated in brown) in bladed botryidal mass inside of a cavity. Fracture surfaces are vitreous while crystal and cleavage surfaces are more waxy. Other minerals (mostly white and black) present on outer surfaces. Description of Mohs scale here