R739 Sample ID R739 • Cabinet C Sandstone 5.153cm W x 7.035cm H x 3.104cm D • 230g Sample TypeRockRock QualitySedimentaryRock TypeClastic CompositionClaysGrain SizeMediumGrain ShapeRounded Grain SortingWell sortedAcid ReactionNoMohs Hardness 5 It a small 3D rectangular shaped rock. There is evidence of banding in the rock. It is mostly orange colored, with a small corner being purpleish brown. Description of Mohs scale here