mineral

Amazonite

Amazonite (KAlSi3O8 - Microcline)

Hardness: 6.0-6.5 on Mohs scale; Color: Green to bluish-green with white streaking; Luster: Vitreous; Crystal Structure: Triclinic; Cleavage: Perfect; Specific Gravity: 2.56-2.58

Hardness: 6
Color: Green to bluish-green with white streaking
Luster: Vitreous

Identified March 25, 2026More mineral →

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Physical properties

Hardness: 6.0-6.5 on Mohs scale; Color: Green to bluish-green with white streaking; Luster: Vitreous; Crystal Structure: Triclinic; Cleavage: Perfect; Specific Gravity: 2.56-2.58

Formation & geological history

Formed in plutonic igneous rocks, specifically pegmatites, as slow-cooling magma crystalizes. Its color is derived from small amounts of lead and water within the feldspar structure.

Uses & applications

Primarily used as a gemstone for jewelry (cabochons and beads) and as an ornamental stone for carvings and decorative objects.

Geological facts

Also known as 'Amazon Stone', it was named after the Amazon River, though it is not actually found there. It is the official state mineral of Colorado, USA, where it often occurs alongside smoky quartz.

Field identification & locations

Identify in the field by its distinct teal-green color and 'Schiller' effect (metallic-like luster) caused by white albite inclusions. Commonly found in Russia, Brazil, Ethiopia, and the Pikes Peak area of Colorado.