mineral

Quartz-rich rock fragment (tentative)

Quartz, silicon dioxide (SiO₂), possibly in a weathered host rock

AI-generated identification · may be incorrect

Small irregular fragment with translucent gray to whitish areas, vitreous luster, and apparent conchoidal fracture; quartz hardness is 7, with no cleavage. The image is insufficient to determine crystal form or specific gravity.

Identified September 7, 2026More mineral →

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Physical properties

Formation & geological history

Likely a natural quartz-bearing fragment formed in a hydrothermal vein or igneous/metamorphic rock; age depends on its host geology. It may also be a processed or weathered chip.

Uses & applications

Common quartz is used in glass, ceramics, abrasives, electronics, and decorative specimens; this small fragment has negligible practical value.

Geological facts

Quartz is one of Earth’s most abundant minerals and commonly forms six-sided crystals, though massive quartz lacks visible crystal faces.

Field identification & locations

Confirm with a hardness test against glass, inspection for conchoidal fracture, and a streak test; quartz should not scratch easily with a steel knife and leaves a white streak. Common worldwide, especially in granite, schist, and mineral veins.