mineral

Chrysocolla (or Fuchsite / Serpentine Carving)

Hydrated copper phyllosilicate, Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (often associated with Malachite/Quartz)

AI-generated identification · may be incorrect

Hardness: 2.5–7 (depending on silica content/chalcedony mix); Color: Cyan, blue-green, mottled emerald and sage green with dark matrix; Luster: Vitreous to waxy/earthy; Crystal System: Orthorhombic/Amorphous microcrystalline; Specific Gravity: ~2.0–2.4 (higher when mixed with quartz or copper minerals)

Hardness: 2
Luster: Vitreous to waxy/earthy

Identified October 3, 2026More mineral →

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Physical properties

Formation & geological history

Formed as a secondary mineral in the oxidation zones of copper ore deposits, frequently precipitating alongside malachite, azurite, and quartz from silica- and copper-rich circulating groundwaters.

Uses & applications

Popular for decorative carvings (such as polished eggs and spheres), cabochons in jewelry, ornamental objects, and as a minor ore of copper.

Geological facts

The name chrysocolla comes from the Greek 'chrysos' (gold) and 'kolla' (glue), referring to its ancient use as a flux to solder gold. Renaissance painters also ground it to use as a vivid green pigment.

Field identification & locations

Recognized by its vibrant greenish-cyan colors, association with copper deposits, relatively low density compared to pure malachite, and mottled or brecciated appearance. Notable localities include the Democratic Republic of the Congo, Arizona (USA), Chile, Peru, and Mexico.