mineral

Small quartz-rich pebble

Quartz (SiO₂), possibly quartzite or weathered granite fragment

AI-generated identification · may be incorrect

Pale cream-gray, opaque to slightly translucent, with a dull to vitreous luster and irregular granular texture. Quartz hardness is 7 Mohs; cleavage is absent, and specific gravity is about 2.65.

Identified August 12, 2026More mineral →

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Physical properties

Pale cream-gray, opaque to slightly translucent, with a dull to vitreous luster and irregular granular texture. Quartz hardness is 7 Mohs; cleavage is absent, and specific gravity is about 2.65.

Formation & geological history

Likely a naturally weathered and transported silicate pebble; its exact rock origin cannot be determined from the image. Quartz formed in igneous or hydrothermal settings, while quartzite forms by metamorphism of sandstone.

Uses & applications

Common quartz-bearing pebbles have little commercial value; quartz is used in glass, electronics, abrasives, and engineered stone. Attractive pieces may be used as casual specimens or lapidary material.

Geological facts

The visible specimen is very small and appears rounded, consistent with abrasion during transport. Its cream color may reflect feldspar, iron staining, or weathered quartz-rich rock rather than pure quartz.

Field identification & locations

Look for glassy translucence, hardness sufficient to scratch ordinary steel or glass, and no obvious cleavage; a streak test and acid test are generally unhelpful. Common in stream gravels, glacial deposits, and weathered granite terrains.