mineral

Tumbled chrysocolla beads

Chrysocolla, hydrated copper-aluminum silicate (approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O), commonly mixed with malachite or quartz

AI-generated identification · may be incorrect

Typically blue-green to teal with mottled black, brown, or green patterns; vitreous to waxy luster; amorphous or cryptocrystalline; hardness about 2.5–3.5 Mohs, sometimes higher when quartz-rich; no obvious cleavage. The pictured material is polished into beads and may be stabilized or resin-treated.

Identified August 18, 2026More mineral →

Explore Tumbled chrysocolla beads 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: Tumbled chrysocolla beads
Scientific name: Chrysocolla, hydrated copper-aluminum silicate (approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O), commonly mixed with malachite or quartz
Category: mineral
Identified: August 18, 2026
Method: Standard

AI Estimated Value

Approximately $10–$40 for a common strand or bracelet; $50–$200+ for high-grade, natural, well-patterned chrysocolla.

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 as a secondary copper mineral in oxidized zones of copper deposits, commonly alongside malachite, azurite, limonite, and quartz. It ranges from young weathering-zone material to deposits of considerable geological age.

Uses & applications

Used for beads, cabochons, carvings, and decorative objects; rarely used industrially because it is soft and often porous.

Geological facts

Its vivid color comes from copper; “gem chrysocolla” is generally quartz-rich and more durable than ordinary chrysocolla.

Field identification & locations

Identify by its blue-green color, low hardness, mottled appearance, and association with copper minerals; common sources include Arizona, Nevada, Chile, Peru, Mexico, and the Democratic Republic of Congo. Avoid harsh chemicals and prolonged soaking.