mineral

Clear quartz crystal (likely quartz point/fragment)

Quartz, silicon dioxide (SiO₂)

AI-generated identification · may be incorrect

Colorless and transparent to translucent, with a vitreous luster and visible internal fractures or cleavage-like reflections. Mohs hardness 7; trigonal crystal structure; no true cleavage; specific gravity about 2.65.

Identified August 25, 2026More mineral →

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Physical properties

Formation & geological history

Forms when silica-rich fluids crystallize in cavities, veins, or pegmatites, commonly during hydrothermal activity. Its exact geological age and locality cannot be determined from the image.

Uses & applications

Used for jewelry, carvings, collector specimens, glass and ceramics, abrasives, and piezoelectric components. Value is generally modest unless exceptionally clear, large, or well-formed.

Geological facts

Quartz commonly produces conchoidal fracture and may show rainbow effects from internal fractures. The apparent round, faceted form could also be a manufactured or polished quartz piece.

Field identification & locations

Common worldwide, especially in Brazil, Madagascar, the United States, and the Alps. Confirm with a scratch test against ordinary glass, examination for natural crystal faces, and avoidance of assuming it is diamond based on sparkle alone.