mineral

Small quartz-rich mineral fragment

Quartz (SiO₂), possibly milky or chalcedonic quartz

AI-generated identification · may be incorrect

Pale cream to translucent, vitreous-to-waxy luster, irregular fracture, and no obvious cleavage; quartz has Mohs hardness 7 and specific gravity about 2.65. The granular sparkle may indicate tiny quartz crystal faces or druzy texture.

Identified August 20, 2026More mineral →

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Physical properties

Formation & geological history

Likely formed from silica-rich hydrothermal fluids or weathered quartz-bearing rock; the specimen’s exact geological age and locality cannot be determined from the photograph.

Uses & applications

Common quartz is used in glass, ceramics, abrasives, electronics, and engineered stone; attractive pieces may be sold as décor or lapidary material.

Geological facts

Quartz is one of Earth’s most abundant minerals and commonly occurs in igneous, metamorphic, and sedimentary rocks.

Field identification & locations

Field identification requires a scratch test against glass (quartz should scratch it), though this can damage the specimen; confirm with a hand lens and hardness testing. Common worldwide, especially in hydrothermal veins and quartz-rich sands.