mineral

Quartz-rich rock, possibly chrysoprase/chalcedony

Microcrystalline quartz (SiO₂), with iron-oxide staining and green inclusions; exact identification requires testing

AI-generated identification · may be incorrect

Translucent, waxy-to-glassy luster with pink-orange and green coloration; likely hardness about 6.5–7 Mohs, no obvious cleavage, and conchoidal fracture. The green areas may be chlorite, epidote, or nickel-bearing chalcedony rather than a separate mineral.

Identified August 21, 2026More mineral →

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At a glance

Common name: Quartz-rich rock, possibly chrysoprase/chalcedony
Scientific name: Microcrystalline quartz (SiO₂), with iron-oxide staining and green inclusions; exact identification requires testing
Category: mineral
Identified: August 21, 2026
Method: Standard

AI Estimated Value

About $2–$15 for a small common rough specimen; $20–$100+ if confirmed as attractive chrysoprase or high-quality patterned chalcedony.

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

Likely formed when silica-rich fluids filled fractures or cavities and deposited chalcedony/quartz, with later iron staining or alteration producing the red-orange zones. A precise age and locality cannot be determined from the photograph.

Uses & applications

Used as a lapidary material for cabochons, carvings, and ornamental pieces; attractive specimens may be collectible, though this piece appears mostly rough and included.

Geological facts

The contrasting colors resemble brecciated or inclusion-rich chalcedony, but visual identification alone cannot distinguish it reliably from altered quartz-bearing rock or jasper.

Field identification & locations

Commonly found in volcanic-hosted cavities, hydrothermal veins, and weathered ultramafic terrains. Test with a steel file or quartz point, inspect a fresh surface, and use streak, specific gravity, and magnification; avoid assuming the green material is chrysoprase.