Quartz Pebble

Hardness of 7 on the Mohs scale, translucent to opaque white or brownish color, vitreous luster, hexagonal crystal system, and conchoidal fracture.

Formed through precipitation from silica-rich solutions or as a primary component of igneous, metamorphic, and sedimentary rocks, subsequently weathered and rounded by water transport.

Used in decorative landscaping, glassmaking, abrasives, and as low-cost tumbling or lapidary material.

Quartz is one of the most abundant and durable minerals in Earth's continental crust, highly resistant to both chemical and mechanical weathering.

Identified by its high hardness (scratches glass), lack of cleavage, and smooth water-worn shape; found worldwide in riverbeds, beaches, and gravel deposits.