mineral

Copper-bearing rock (likely native copper in a green copper-mineral matrix)

Native copper (Cu), possibly with chrysocolla or malachite; exact identification requires testing

AI-generated identification · may be incorrect

Green-blue, matte to earthy matrix with irregular salmon-red metallic-looking veins or patches. Native copper has Mohs hardness 2.5–3 and metallic luster; the image alone does not establish crystal structure or specific gravity.

Identified October 6, 2026More mineral →

Explore Copper-bearing rock (likely native copper in a green copper-mineral matrix) in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

At a glance

Common name: Copper-bearing rock (likely native copper in a green copper-mineral matrix)
Scientific name: Native copper (Cu), possibly with chrysocolla or malachite; exact identification requires testing
Category: mineral
Identified: October 6, 2026
Method: Standard

AI Estimated Value

About $5–$50 for a small common specimen; larger, well-defined native-copper pieces can be worth more.

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 copper-rich fluids deposited copper and secondary copper minerals in fractures during oxidation of a copper deposit; age depends on locality and cannot be determined from the image.

Uses & applications

Copper ores are mined for electrical wiring, plumbing, alloys, and other industrial uses; attractive specimens may be collected or used decoratively.

Geological facts

Copper commonly develops green-blue secondary minerals as it weathers, while unoxidized native copper can retain a reddish metallic color.

Field identification & locations

Look for metallic reddish areas that are malleable and leave a copper-colored streak, alongside blue-green staining. Copper-bearing specimens occur in many mining districts, notably Michigan’s Keweenaw Peninsula; this image does not confirm a locality or species.