mineral

White quartz-rich rock, possibly vein quartz

Quartz (SiO₂), likely massive milky quartz; exact identification is uncertain from the image

AI-generated identification · may be incorrect

White to cream, opaque, irregular and weathered surface with brown staining or inclusions; quartz has Mohs hardness 7, vitreous luster when freshly broken, and no cleavage. The specimen appears granular or fractured rather than showing distinct crystals.

Identified October 9, 2026More mineral →

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Physical properties

Formation & geological history

Quartz commonly crystallizes from silica-rich fluids in fractures and veins, or forms in silica-rich rocks; its age cannot be determined from appearance alone.

Uses & applications

Quartz is used in glass, electronics, abrasives, and decorative stone; this small, rough piece is mainly suitable for collecting.

Geological facts

Milky quartz looks white because tiny fluid inclusions and fractures scatter light.

Field identification & locations

A scratch test against ordinary glass can help distinguish quartz (usually scratches it), though testing may damage the specimen. The image does not show enough detail to establish its precise rock type or locality.