mineral

Likely quartz-rich pebbles

Quartz (SiO₂), possibly milky quartz or quartzite; identification is uncertain from the blurry image

AI-generated identification · may be incorrect

Two small, pale gray-to-white, dull-to-slightly vitreous pieces with irregular rounded shapes. Quartz has Mohs hardness 7, hexagonal crystal structure, no cleavage, and specific gravity about 2.65; quartzite is a hard, interlocking-grain metamorphic rock.

Identified September 29, 2026More mineral →

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Physical properties

Formation & geological history

Quartz forms in many igneous, metamorphic, and sedimentary settings; quartzite forms when quartz sandstone is metamorphosed. These pieces may be weathered fragments, but their age and exact origin cannot be determined from the photo.

Uses & applications

Quartz is used in glass, electronics, and abrasives; quartzite is used as aggregate, building stone, and decorative material. These small pieces have little likely commercial value.

Geological facts

Quartz is one of Earth’s most abundant minerals and commonly survives weathering to become rounded pebbles.

Field identification & locations

The photograph lacks scale and sharp detail, so mineral identification is tentative; hardness and a fresh broken surface would help distinguish quartz from quartzite. Both are plausible in the Lesotho–South Africa region near the reported coordinates.