MN100 Sample ID MN100 • Cabinet K Bloodstone 11.63cm W x 6.98cm H x 5.64cm D • 474g Sample TypeMineralColorDark base, streaked with reds and whitesLusterNon-metallic StreakColorlessCleavage/FractureConchoidalSpecific Gravity2.604 Geographic Location/DateMexico Mohs Hardness 9 the sample is flat on one side and textured on the rest. there is a large red spot surrounded by a white feathered edge on one side and white streaks on the other. Bloodstone is a form of Chalcedony which is a microcrystalline variety of quartz. Description of Mohs scale here