mineral

Quartz-rich stone tool or shaped mineral specimen

Likely milky quartz or quartzite (SiO₂); exact material cannot be confirmed from the image

AI-generated identification · may be incorrect

Gray-white, opaque to slightly translucent, with a matte weathered surface and possible fracture or cleavage-like bands. Quartz has Mohs hardness 7 and a hexagonal crystal structure; quartzite is a hard, interlocking-grain metamorphic rock.

Identified September 26, 2026More mineral →

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At a glance

Common name: Quartz-rich stone tool or shaped mineral specimen
Scientific name: Likely milky quartz or quartzite (SiO₂); exact material cannot be confirmed from the image
Category: mineral
Identified: September 26, 2026
Method: Standard

AI Estimated Value

Approximately $5–$30 as an unidentified shaped stone; verified archaeological provenance could substantially change its research significance and value.

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

The object appears shaped, but its geological source is uncertain. Quartz forms in igneous and hydrothermal settings, while quartzite forms when quartz sandstone is metamorphosed; these materials occur across many geological ages.

Uses & applications

If an archaeological tool, it may have been used for grinding, pounding, or processing materials; otherwise, quartz and quartzite are used in construction, industry, and collecting.

Geological facts

The bulbous end and elongated shaft suggest deliberate shaping, but appearance alone cannot establish its function or age.

Field identification & locations

Look for hardness, glassy luster on fresh breaks, and lack of reaction to vinegar; these can help distinguish quartz-rich material from softer stone. The photo does not reveal a specific locality.