Rock Identifier
Tumbled aqua glassy mineral specimen, likely chrysocolla or turquoise imitation (Uncertain from image; possible chrysocolla (hydrated copper aluminosilicate, variable composition) or dyed/man-made glass) — mineral
mineral

Tumbled aqua glassy mineral specimen, likely chrysocolla or turquoise imitation

Uncertain from image; possible chrysocolla (hydrated copper aluminosilicate, variable composition) or dyed/man-made glass

AI-generated identification · may be incorrect

Blue-green, translucent, vitreous to waxy luster, irregular massive form with conchoidal-looking fractures; apparent hardness roughly 3–6, but visual identification is inconclusive. No clear crystal faces or cleavage are visible.

Identified More mineral
Explore Tumbled aqua glassy mineral specimen, likely chrysocolla or turquoise imitation in the encyclopedia →

Identify your own rocks.

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

Physical properties

Blue-green, translucent, vitreous to waxy luster, irregular massive form with conchoidal-looking fractures; apparent hardness roughly 3–6, but visual identification is inconclusive. No clear crystal faces or cleavage are visible.

Formation & geological history

Natural chrysocolla forms in oxidized copper deposits, commonly as crusts and masses, generally during weathering of copper ores; turquoise forms similarly. The smooth, glasslike texture may instead indicate processed glass, which would not be a geological specimen.

Uses & applications

Natural material is used for cabochons, beads, carvings, and mineral collecting; copper minerals have limited ornamental use. Common blue-green glass is decorative but has little collector value.

Geological facts

Color alone cannot distinguish chrysocolla, turquoise, dyed stone, or glass. A hardness test, streak, specific gravity, and examination of bubbles or flow lines are needed.

Field identification & locations

Test inconspicuously: glass commonly scratches with a steel tool and may show bubbles/flow lines; chrysocolla usually leaves a pale green-blue streak and is softer. Common natural sources include Arizona, Nevada, Chile, Peru, and the Democratic Republic of Congo.