R735 Sample ID R735 • Cabinet C Micaceous Sandstone 9.675cm W x 15.446cm H x 3.559cm D • 1100g Sample TypeRockRock QualitySedimentaryRock TypeClastic CompositionRock fragmentsGrain SizeMediumGrain ShapeAngular Grain SortingWell sortedAcid ReactionNoMohs Hardness 6 The rock is a slab most likely cut to be able to see inside. Mostly grey with bits of brown rocks that are softer. Some rust evidence on the bottom of the rock. Description of Mohs scale here