mineral

Tumbled blue-green stone, likely chrysocolla-bearing jasper

Chrysocolla-rich chalcedony/jasper; commonly a mixture of chrysocolla (hydrated copper silicate, variable formula) and quartz (SiO₂)

AI-generated identification · may be incorrect

Polished, opaque blue-green with darker mottling and a vitreous-to-waxy luster; estimated Mohs hardness 5–7 depending on quartz content, with no visible cleavage and massive microcrystalline structure.

Identified August 11, 2026More mineral →

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At a glance

Common name: Tumbled blue-green stone, likely chrysocolla-bearing jasper
Scientific name: Chrysocolla-rich chalcedony/jasper; commonly a mixture of chrysocolla (hydrated copper silicate, variable formula) and quartz (SiO₂)
Category: mineral
Identified: August 11, 2026
Method: Standard

AI Estimated Value

About $3–$15 for a small tumbled stone; $20–$100+ for attractive, strongly patterned lapidary material.

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

Forms in oxidized zones above copper deposits, where copper-rich fluids alter silica-bearing rock; typically Cenozoic to older, depending on the host deposit. The specimen has been shaped and polished, obscuring its original texture.

Uses & applications

Used as a decorative and lapidary material for cabochons, carvings, beads, and tumbled stones; too variable and generally too soft for high-wear jewelry.

Geological facts

Chrysocolla’s vivid color comes from hydrated copper minerals, and specimens may grade into turquoise, malachite, azurite, or quartz. Exact identification requires hardness, streak, or laboratory testing.

Field identification & locations

Commonly found in copper districts of Arizona, Nevada, Chile, Peru, Mexico, and Australia; blue-green color, opaque appearance, and copper-associated mineral patterns are useful clues. Avoid harsh chemicals and prolonged soaking if chrysocolla-rich.