MN101 Sample ID MN101 • Cabinet K Opal 8.373cm W x 4.261cm H x 3.296cm D • 186g Sample TypeMineralColoriridescent streaks of different blues and whitesLusterpearly StreakColorlessCleavage/FractureConchoidal cleavageSpecific Gravity2.65 Geographic Location/Date Mohs Hardness 9 streaked semitranslucent iridescent blues and whites surrounded by greyish brown stone. Description of Mohs scale here