mineral

Amazonite

KAlSi3O8 (Potassium Aluminum Silicate)

Hardness: 6-6.5 Mohs; Color: Teal, green, or blue-green with white streaks; Luster: Vitreous to pearly; Crystal Structure: Triclinic; Cleavage: Perfect; Specific Gravity: 2.56-2.58

Hardness: 6-6
Color: Teal, green, or blue-green with white streaks
Luster: Vitreous to pearly

Identified May 2, 2026More mineral →

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Physical properties

Hardness: 6-6.5 Mohs; Color: Teal, green, or blue-green with white streaks; Luster: Vitreous to pearly; Crystal Structure: Triclinic; Cleavage: Perfect; Specific Gravity: 2.56-2.58

Formation & geological history

Formed in plutonic rocks such as pegmatites and granites through hydrothermal activity. Frequently found in deep-seated igneous environments.

Uses & applications

Primarily used as a gemstone for jewelry, ornamental carvings, and as a popular specimen for mineral collectors.

Geological facts

Named after the Amazon River, though it is not actually found there; its color was once thought to come from copper, but is actually caused by lead and water traces in the feldspar structure.

Field identification & locations

Identify by its distinct blue-green color and white schiller or 'grid-like' wavy patterns. Common locations include Russia, Madagascar, Brazil, and Pikes Peak, Colorado, USA.