R643 Sample ID R643 • Cabinet A Marble 5.949cm W x 8.902cm H x 0.991cm D • 88g Sample TypeRockRock QualityMetamorphicTextureNon-foliated Grain SizeFineColorMixed light and darkGrain Sorting mohs 3 It is triangular shaped, with varying shades of gray, a little white, and a little black. It has a glassy sheen on one side. It is kind of on the small side in terms of size Description of Mohs scale here