Sandstone (Quartzite texture)

Physical Properties

Hardness: 6-7 Mohs; Color: Tan, beige, light brown; Luster: Dull/Earthly; Crystal Structure: Clastic grains visible; Cleavage: None; Specific Gravity: 2.3–2.4

Formation & Geological History

Formed through the accumulation of sand-sized mineral particles or rock fragments, subsequently lithified. This specific specimen has been smoothed and rounded by river or glaciofluvial transport.

Uses & Applications

Commonly used as decorative landscaping stone (river rock), construction aggregate, and in architectural veneers.

Geological Facts

Sandstone is one of the most common sedimentary rocks on Earth. The rounded shape indicates it has spent a significant amount of time in a high-energy water environment, such as a riverbed or shoreline.

Field Identification & Locations

Identify in the field by its sandpaper-like texture and visible sand grains. It is extremely common in garden beds and landscaping drainage areas.

Identified on: 4/19/2026

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