This specimen appears to be sandstone, a classic clastic sedimentary rock formed from compressed sand-sized grains. It displays a typical grainy, rough texture and a characteristic tan-to-reddish brown coloration. [1, 2, 3, 4]Key Characteristics of SandstoneComposition: Mostly composed of quartz and feldspar minerals, which are highly resistant to weathering.Texture: Feels like sandpaper due to the tiny mineral grains cemented together.Coloring: The warm reddish-brown patch in the center is often caused by iron oxide (rust) staining the grains. [1, 2, 3]Common UsesConstruction: Frequently used as building blocks, flagstones, and paving slabs.Landscaping: Popularly placed as decorative garden boulders or simulated via hollow resin covers to hide utility pumps measures 5 in x 14 in x 14 in

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