MN600 Sample ID MN600 • Cabinet Z Galena 6.57cm W x 3.65cm H x 4.64cm D • 342g Sample TypeMineralColorSilverLusterDull StreakBlackCleavage/FracturePerfect CubicSpecific Gravity7.13 Geographic Location/DateJoplin MO Mohs Hardness 3 Collection of cubic Galena with some oxidation present. Bottom is more degraded. Some sections have a more metallic luster while most of the mineral is dull. Description of Mohs scale here