R741 Sample ID R741 • Cabinet C Sandstone 7.052cm W x 28.5cm H x 6.491cm D • 2804g Sample TypeRockRock QualitySedimentaryRock TypeClastic CompositionMineral grainsGrain SizeMediumGrain ShapeRounded Grain SortingWell sortedAcid ReactionNoMohs Hardness 4 It is a long rock that is brown. It has a couple sides that are somewhat rough and other sides that are somewhat smooth. The bottom of the rock is a darker brown than the top of the rock. Description of Mohs scale here