mineral
Quartz-rich rock fragment (tentative)
Quartz, silicon dioxide (SiO₂), possibly in a weathered host rock
AI-generated identification · may be incorrectSmall 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.
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Physical properties
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.
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.
