MN202 Sample ID MN202 • Cabinet U Celestite 5.17cm W x 3.86cm H x 3.6cm D • 54g Sample TypeMineralColorLight gray/blueLusterPearly StreakwhiteCleavage/Fracturegood orthorhombic cleavageSpecific Gravity3 Geographic Location/Date Mohs Hardness 3 long gray/blue crystals covering 75% of tan rock, one prominent crystal near Description of Mohs scale here