mineral

Likely chrysocolla-bearing rock

Chrysocolla, a hydrated copper silicate; the specimen may also contain quartz or other copper minerals

AI-generated identification · may be incorrect

Small, rounded blue-green specimen with a mottled, possibly botryoidal surface and dull to vitreous patches. Chrysocolla is typically soft (about 2–4 Mohs), with no consistent crystal form; the image is too small to confirm composition or hardness.

Identified October 9, 2026More mineral →

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Physical properties

Formation & geological history

Forms as a secondary copper mineral during weathering and oxidation of copper deposits, often coating or filling fractures in arid-zone rocks. Its age depends on the host deposit and cannot be determined from the photograph.

Uses & applications

Attractive chrysocolla is used for cabochons, beads, and mineral collections; copper-bearing ores have industrial value, though this small piece is unlikely to be ore-grade.

Geological facts

Chrysocolla’s vivid color comes from copper, and it commonly occurs alongside malachite, azurite, and turquoise.

Field identification & locations

Look for blue-green color and irregular coatings near oxidized copper deposits; confirm with a reliable mineral test, since appearance alone cannot distinguish it from turquoise or dyed material. Common sources include Arizona, Peru, Chile, and the Democratic Republic of the Congo.