mineral

Tumbled quartz-rich pebble, possibly milky quartz or quartzite

Quartz (SiO₂), potentially quartzite if metamorphically recrystallized

AI-generated identification · may be incorrect

Pale pinkish-white, opaque to translucent, with a glassy-to-waxy luster and irregular granular texture. Quartz has Mohs hardness 7, no cleavage, conchoidal fracture, and specific gravity about 2.65; the rounded shape indicates tumbling or stream wear.

Identified September 16, 2026More mineral →

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Physical properties

Formation & geological history

Likely formed from silica-rich veins or quartz-rich metamorphic rock; the pink coloration may reflect iron staining or minor feldspar. Exact geological age and locality cannot be determined from the photograph.

Uses & applications

Used as a decorative stone, landscaping pebble, craft material, and inexpensive lapidary specimen; generally little jewelry value unless unusually clear or attractive.

Geological facts

Quartz is one of Earth’s most abundant minerals and is a major component of granite, sandstone, and many metamorphic rocks.

Field identification & locations

Identify it by its hardness— it should scratch ordinary glass—and lack of cleavage; it is not likely to be calcite, which is much softer. Common worldwide, especially in quartz veins and river gravels.