mineral

Amazonite

Microcline (KAlSi3O8) with trace lead (Pb)

AI-generated identification · may be incorrect

Hardness: 6-6.5; Color: turquoise, blue-green, or mint green with white streaks; Luster: vitreous to pearly; Crystal structure: Triclinic; Cleavage: Perfect in two directions

Hardness: 6-6
Color: turquoise, blue-green, or mint green with white streaks
Luster: vitreous to pearly

Identified July 12, 2026More mineral →

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Physical properties

Hardness: 6-6.5; Color: turquoise, blue-green, or mint green with white streaks; Luster: vitreous to pearly; Crystal structure: Triclinic; Cleavage: Perfect in two directions

Formation & geological history

Forms in igneous rocks like pegmatites and granites, as well as some metamorphic schists. Its characteristic color is caused by the presence of trace amounts of lead and water within the feldspar structure.

Uses & applications

Primarily used as a gemstone for jewelry, ornamental carvings, and a popular specimen for mineral collectors due to its vibrant color.

Geological facts

Named after the Amazon River, though it is not actually found there; it was likely confused with other green stones found in the region. The finest specimens are often associated with smoky quartz crystals.

Field identification & locations

Look for the distinct 'schiller' or pearly sheen and white grid-like streaks (perthitic texture). Common locations include the Pikes Peak area of Colorado (USA), Brazil, Russia, and Madagascar.