mineral

Amazonite (likely)

Green microcline feldspar, KAlSi₃O₈

AI-generated identification · may be incorrect

Blue-green to pale green, opaque, vitreous to pearly luster with white streaks; Mohs hardness 6–6.5, specific gravity about 2.55–2.63, triclinic crystal structure, and two good cleavage directions. The rough, irregular specimen is consistent with amazonite, though visual identification alone is not definitive.

Identified August 9, 2026More mineral →

Explore Amazonite (likely) in the encyclopedia →

Identify your own rocks.

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

App Store Google Play

Physical properties

Formation & geological history

Forms in potassium-rich granitic pegmatites as a variety of microcline, commonly during late-stage cooling of granitic magmas. Most specimens are Paleozoic to younger, with notable deposits in Colorado, Brazil, Russia, Madagascar, and Mozambique.

Uses & applications

Used as a decorative and lapidary stone for cabochons, beads, carvings, and polished specimens; rarely used industrially because of its attractive color and limited abundance.

Geological facts

Its turquoise-green color is associated with trace lead and water-related defects in the feldspar crystal lattice, not copper. It can fade or alter with prolonged heat or intense light.

Field identification & locations

Identify by its blue-green color, feldspar cleavage, moderate hardness, and white veining; a hardness test and confirmed feldspar cleavage help distinguish it from turquoise or chrysoprase. Rough common pieces typically sell for $5–$25; attractive polished or large specimens range from $30–$150+.