MN339 Sample ID MN339 • Educational Cabinets Calcite 3.171cm W x 1.235cm H x 2.279cm D • 18g Sample TypeMineralColorWhiteLusterPearly StreakWhiteCleavage/FractureGood cleavageSpecific Gravity3 Geographic Location/Date Mohs Hardness 2 A collection of three. The representative is the largest and has the best cleavage. It has near perfect planes of cleavage at 60 and 120 degrees. Additionally it effervesces when exposed to a vinegar solution. Description of Mohs scale here