mineral

Tumbled pale green quartz (likely aventurine or chalcedony)

Quartz, SiO₂; possibly green aventurine (quartzite with fuchsite) or pale green chalcedony

AI-generated identification · may be incorrect

Hardness 6.5–7 Mohs; translucent pale green with cream/tan bands, vitreous to waxy luster, crystalline quartz structure, and no obvious cleavage. The rounded surface indicates mechanical tumbling and polishing.

Identified August 29, 2026More mineral →

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At a glance

Common name: Tumbled pale green quartz (likely aventurine or chalcedony)
Scientific name: Quartz, SiO₂; possibly green aventurine (quartzite with fuchsite) or pale green chalcedony
Category: mineral
Identified: August 29, 2026
Method: Standard

AI Estimated Value

Typically $2–$15 as a small tumbled stone; $20–$60 if unusually large, attractive, or confirmed as quality green aventurine.

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-rich material formed in silica-bearing veins or metamorphic rocks; green color may come from fuchsite, chlorite, or other inclusions. Exact geological age and locality cannot be determined from the photograph.

Uses & applications

Used as a decorative tumbled stone, cabochon, carving material, and inexpensive jewelry stone; quartz-rich rock is also used in glass and aggregate industries.

Geological facts

The specimen’s broad color zoning and translucent body are consistent with common lapidary quartz materials, but photography alone cannot distinguish aventurine from chalcedony or pale quartzite reliably.

Field identification & locations

Check for glassy versus waxy luster, translucency at the edges, and hardness: quartz should scratch ordinary glass but not be scratched by a steel blade. Common sources include Brazil, India, Madagascar, and the United States.