mineral

Amazonite

Microcline (KAlSi3O8)

Hardness: 6-6.5 Mohs; Color: Turquoise-green to blue-green; Luster: Vitreous; Crystal Structure: Triclinic; Cleavage: Perfect in two directions; Specific Gravity: 2.56-2.58

Hardness: 6-6
Color: Turquoise-green to blue-green
Luster: Vitreous

Identified May 25, 2026More mineral →

Identify your own rocks.

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

App Store Google Play

Physical properties

Hardness: 6-6.5 Mohs; Color: Turquoise-green to blue-green; Luster: Vitreous; Crystal Structure: Triclinic; Cleavage: Perfect in two directions; Specific Gravity: 2.56-2.58

Formation & geological history

Formed in igneous environments, specifically granitic pegmatites and hydrothermal veins. Localities range from the Precambrian to more recent geological eras.

Uses & applications

Used primarily as a gemstone for jewelry (cabochon cut), ornamental carvings, and as a popular specimen for mineral collectors.

Geological facts

Historically named after the Amazon River, though no deposits have actually been found there. Its color is attributed to small amounts of lead and water within the feldspar structure.

Field identification & locations

Identify by its distinctive blue-green color and the presence of white streaks or 'schiller' effect. Found in Colorado (Pikes Peak), Russia, Brazil, and Madagascar.