R734 Sample ID R734 • Cabinet C Peat 6.222cm W x 8.576cm H x 3.333cm D • 68g Sample TypeRockRock QualitySedimentaryRock TypeOrganic CompositionOrganicsGrain SizeMediumGrain ShapeN/A Grain SortingN/AAcid ReactionNoMohs Hardness 1 Brown colored, and crumbles fairly easily in your hands. Has visible cracks throughout the rock. Some of the rocks in this group is Lignite while the other is Peat Description of Mohs scale here