mineral

Pink-and-white quartz-rich pebble

Quartz (SiO₂), likely massive quartz with iron-oxide staining and possible feldspar inclusions

AI-generated identification · may be incorrect

Hardness about 7 Mohs; white to pale pink, translucent to opaque, with a dull-to-glassy luster and no obvious cleavage. The rounded shape indicates natural water wear or tumbling; exact identification is limited without tests.

Identified August 29, 2026More mineral →

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Physical properties

Formation & geological history

Likely formed in a quartz-rich igneous or metamorphic rock and later released by weathering and rounded in a stream or shoreline environment. Quartz commonly formed during Precambrian to younger geological events, depending on its source rock.

Uses & applications

Suitable as a decorative or teaching specimen, landscaping stone, or lapidary material; low-grade pieces are generally not used for jewelry.

Geological facts

Pink coloration may result from microscopic iron, inclusions, or radiation-related defects; reddish patches may be iron oxides or altered feldspar. A steel file should not scratch quartz, while quartz can scratch glass.

Field identification & locations

Common in river gravels and quartz veins worldwide, especially regions with granite or metamorphic bedrock. Confirm with a hardness test, glass-scratch test, and streak/powder examination; acid testing is unnecessary.