mineral

Amazonite

Microcline feldspar (KAlSi3O8)

Hardness: 6 on the Mohs scale. Color: Bright turquoise-green to blue-green with white striations. Luster: Vitreous to pearly. Crystal structure: Triclinic. Cleavage: Perfect in two directions at nearly right angles. Specific gravity: 2.56-2.58.

Hardness: 6 on the Mohs scale
Color: Bright turquoise-green to blue-green with white striations
Luster: Vitreous to pearly

Identified July 30, 2026More mineral →

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Physical properties

Formation & geological history

Forms primarily in pegmatites and granitic rocks through slow cooling of magma, often associated with hydrothermal processes where lead and water interact with potassium feldspar.

Uses & applications

Used primarily in ornamental carvings, cabochons for jewelry, and as a popular tumbled stone for collectors and metaphysical purposes.

Geological facts

Despite its name, no amazonite deposits are found in the Amazon River basin; the name likely originated from confusion with another green stone from the region.

Field identification & locations

Easily identified by its distinct grid-like white pattern (tartan twinning) embedded in a bright green or blue-green matrix. Found in Russia, the United States (Colorado), Brazil, and Madagascar.