MN631 No Image! Sample ID MN631 • Cabinet T Galena 17.5cm W x 22cm H x 8cm D • 5192g Sample TypeMineralColorGrey with brown oxidationLusterOpaque with Metallic Luster StreakGreyCleavage/FracturePerfect cubic cleavage/Subconchoidal FractureSpecific GravitySpecimen too big to measure SG Geographic Location/DateGalena, IL NAMohs Hardness 3 A large sample of Galena, grey in color, with brown-reddish oxidation. Has a grey streak, and is opaque with a metallic luster. Has perfect cubic cleavage and subconchoidal fractures. Description of Mohs scale here