mineral

Quartz-rich rock, likely milky quartz vein material

Predominantly quartz (SiO₂); exact rock type cannot be determined from the photograph

AI-generated identification · may be incorrect

Pale gray-white with rusty brown staining and a massive, nonmetallic appearance; quartz has Mohs hardness 7, vitreous luster, and no cleavage. The image does not show enough detail to determine texture or crystal structure in the larger specimen.

Identified October 14, 2026More mineral →

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At a glance

Common name: Quartz-rich rock, likely milky quartz vein material
Scientific name: Predominantly quartz (SiO₂); exact rock type cannot be determined from the photograph
Category: mineral
Identified: October 14, 2026
Method: Standard

AI Estimated Value

Approximately $1–$20 for a common rough specimen of this size; higher value would require distinctive quality or verified provenance.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

Quartz commonly crystallizes from silica-rich fluids in fractures and veins, or forms in quartz-rich rocks; such material occurs across many geological ages. The specimen’s specific formation history is not identifiable from the image.

Uses & applications

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

Geological facts

Iron-oxide staining can give quartz a tan or rusty surface while its interior remains white or translucent.

Field identification & locations

Look for hardness near 7, glassy surfaces, and lack of cleavage; it should scratch ordinary glass. Similar quartz is widespread, but a definitive identification would require examining a fresh surface and texture.