Amazonite

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.

Identified on: 4/18/2026

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