mineral

Amazonite

Amazonite (KAlSi3O8)

AI-generated identification · may be incorrect

Hardness: 6-6.5 (Mohs scale); Color: green to blue-green; Luster: Vitreous; Crystal Structure: Triclinic; Cleavage: Perfect; Specific Gravity: 2.56-2.58

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

Identified April 18, 2026More mineral →

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Physical properties

Hardness: 6-6.5 (Mohs scale); Color: green to blue-green; Luster: Vitreous; Crystal Structure: Triclinic; Cleavage: Perfect; Specific Gravity: 2.56-2.58

Formation & geological history

Formed in igneous environments, specifically granitic pegmatites and hydrothermal veins. Its distinct green color is caused by the presence of lead and water within the feldspar structure.

Uses & applications

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

Geological facts

Amazonite is a variety of Microcline feldspar. Despite its name, it is not actually found in the Amazon River, though it is found in other parts of Brazil.

Field identification & locations

Identify in the field by its distinct teal or turquoise color and pearly to vitreous luster on cleavage planes. Commonly found in Colorado (USA), Brazil, Russia, and Madagascar.