mineral

Copper-bearing rock, likely oxidized native copper ore

Native copper (Cu) with copper-oxide/carbonate minerals, possibly chrysocolla, malachite, and cuprite in a limonitic host

AI-generated identification · may be incorrect

Earthy to dull metallic luster; rusty brown iron-oxide matrix with blue-green copper staining. Hardness is variable, roughly 2–4 for malachite/chrysocolla and up to 3 for native copper; massive and non-cleavable overall. Copper minerals commonly have high specific gravity, but this specimen’s density is uncertain.

Identified August 29, 2026More mineral →

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At a glance

Common name: Copper-bearing rock, likely oxidized native copper ore
Scientific name: Native copper (Cu) with copper-oxide/carbonate minerals, possibly chrysocolla, malachite, and cuprite in a limonitic host
Category: mineral
Identified: August 29, 2026
Method: Standard

AI Estimated Value

About $5–$30 as a common rough ore specimen; $30–$150+ if it has abundant vivid green-blue minerals, visible native copper, or attractive display 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

Formed by oxidation and weathering of copper sulfide deposits, producing secondary copper minerals near the surface. The Globe–Miami region of Arizona, near the reported location, is a major copper-mining district where such material is geologically plausible.

Uses & applications

Primarily a mineral specimen or copper-ore sample; historically and commercially copper ores are mined for electrical wiring, plumbing, alloys, and industrial equipment. Attractive polished pieces may be sold decoratively.

Geological facts

Blue-green coloration strongly indicates oxidized copper minerals, especially chrysocolla or malachite; rusty brown areas are likely limonite/goethite. The image does not clearly show metallic native copper, so a laboratory identification would be needed.

Field identification & locations

Look for blue-green crusts, green streaking, and unusually heavy mass. A white-streak test, hardness tests, dilute acid reaction, density, and ideally X-ray diffraction or Raman analysis can distinguish malachite, chrysocolla, cuprite, and native copper.