R860 No Image! Sample ID R860 • Cabinet A Hornblende Schist 8.9cm W x 3.9cm H x 7.1cm D • 624g Sample TypeRockRock QualityMetamorphicTextureSchistose Grain SizeVery fineColorDarkGrain Sorting mohs 2 Two pieces of flaky hornblende schist. Very glittery Description of Mohs scale here