mineral

Amazonite

K(AlSi3O8) - Potassium Aluminum Silicate

Hardness: 6-6.5 on Mohs scale; Color: blue-green to turquoise with white streaks/mottling; Luster: vitreous to pearly; Crystal structure: Triclinic; Cleavage: Perfect in two directions

Hardness: 6-6
Color: blue-green to turquoise with white streaks/mottling
Luster: vitreous to pearly

Identified May 21, 2026More mineral →

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Physical properties

Hardness: 6-6.5 on Mohs scale; Color: blue-green to turquoise with white streaks/mottling; Luster: vitreous to pearly; Crystal structure: Triclinic; Cleavage: Perfect in two directions

Formation & geological history

Forms in granitic pegmatites and metamorphic rocks through hydrothermal processes. The green-blue color is attributed to small amounts of lead and water within the feldspar structure.

Uses & applications

Primarily used as a gemstone for jewelry, ornamental carvings, and as a popular mineral for metaphysical collection.

Geological facts

It belongs to the Microcline feldspar group. Its name is derived from the Amazon River, although no deposits have actually been found there; it was likely confused with other green stones from that region in the past.

Field identification & locations

Identify by its unique blue-green color and the presence of fine white line-like streaks (perthitic texture). Common locations include the USA (Colorado), Russia, Brazil, and Madagascar.