R648 Sample ID R648 • Cabinet A Amphibolite 4.993cm W x 12.245cm H x 8.224cm D • 1040g Sample TypeRockRock QualityMetamorphicTextureNon-foliated Grain SizeFineColorDarkGrain Sorting mohs 6 It is shaped like an S with some minerals that have a gold like color to them that are dotted around on the rock. Though they are mostly congregated in one of the curves the S-shaped rock makes, The rock is black colored. Description of Mohs scale here