mineral

Quartz-rich rock, possibly milky quartz in a weathered host

Quartz (SiO₂); the specimen may be a quartz vein fragment, but the image is insufficient for a precise identification

AI-generated identification · may be incorrect

Pale cream to white, opaque to slightly translucent, with a vitreous-to-dull surface; quartz hardness is 7 Mohs and its crystals are hexagonal with no cleavage. The rough, weathered specimen obscures its full texture and composition.

Identified September 24, 2026More mineral →

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At a glance

Common name: Quartz-rich rock, possibly milky quartz in a weathered host
Scientific name: Quartz (SiO₂); the specimen may be a quartz vein fragment, but the image is insufficient for a precise identification
Category: mineral
Identified: September 24, 2026
Method: Standard

AI Estimated Value

About $1–$10 for a common, hand-sized rough specimen; higher value would require confirmed rarity or notable quality.

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 forms when silica-rich fluids fill cracks and crystallize as veins in many rock types; vein formation can occur across a wide range of geological ages.

Uses & applications

Quartz is used in glass, electronics, abrasives, and construction aggregate; attractive pieces may be collected or cut, though this specimen appears unworked.

Geological facts

Quartz is one of Earth’s most abundant minerals and breaks with a curved, conchoidal fracture rather than cleavage.

Field identification & locations

Look for hardness sufficient to scratch glass, a glassy appearance on fresh surfaces, and no cleavage; quartz veins are common worldwide. The visible specimen could include other minerals, so a close examination is needed to identify the host rock.