R761 Sample ID R761 • Cabinet C Peat 9.109cm W x 12.822cm H x 5.288cm D • 66g Sample TypeRockRock QualitySedimentaryRock TypeOrganic CompositionOrganicsGrain SizeMediumGrain ShapeN/A Grain SortingPoorly sortedAcid ReactionYesMohs Hardness 1 It is a very crumbly, light weight brick of organic material that has barely started to decompose Description of Mohs scale here