mineral

Amazonite

K(AlSi3O8) - Microcline variant

Hardness: 6-6.5 Mohs. Color: Turquoise green to bluish green with white streaks. Luster: Vitreous to pearly. Crystal Structure: Triclinic. Cleavage: Perfect in two directions. Specific Gravity: 2.55-2.57.

Hardness: 6-6
Color: Turquoise green to bluish green with white streaks
Luster: Vitreous to pearly

Identified May 1, 2026More mineral →

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Physical properties

Formation & geological history

Formed in granitic pegmatites and metamorphic rocks. The green color is caused by trace amounts of lead and water within the feldspar lattice. Most specimens are found in Precambrian age deposits.

Uses & applications

Used primarily as a gemstone for jewelry, ornamental carvings, polished cabochons, and as a popular specimen for mineral collectors.

Geological facts

Also known as Amazon Stone, it was named after the Amazon River, though it is not actually found there. It is known for its characteristic 'schiller' or pearly sheen when viewed from certain angles.

Field identification & locations

Identify by its distinctive blue-green color and grid-like 'perthitic' white streaks. Commonly found in Colorado (USA), Brazil, Madagascar, and Russia. Collectors should look for intense color and translucency.