mineral

Amazonite (with smoky quartz/feldspar inclusions)

K(AlSi3O8), Microcline (Tectosilicate)

Hardness: 6-6.5; Color: turquoise-green or blue-green with white/beige streaks; Luster: Vitreous to pearly; Crystal structure: Triclinic; Cleavage: Perfect at two angles.

Hardness: 6-6
Color: turquoise-green or blue-green with white/beige streaks
Luster: Vitreous to pearly

Identified March 29, 2026More mineral →

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Physical properties

Hardness: 6-6.5; Color: turquoise-green or blue-green with white/beige streaks; Luster: Vitreous to pearly; Crystal structure: Triclinic; Cleavage: Perfect at two angles.

Formation & geological history

Formed in plutonic rocks such as pegmatites or granites. The distinctive color is caused by trace amounts of lead and water within the feldspar. Found in late-stage crystallization environments.

Uses & applications

Primarily used as a gemstone for jewelry (beads, cabochons) and ornamental carvings. It is also a popular collector's mineral.

Geological facts

Amazonite is named after the Amazon River, though it is not actually found there; it was likely confused with other green stones. The color can fade if exposed to high heat or direct sunlight over long periods.

Field identification & locations

Identify by its distinctive 'schiller' effect (a subtle shimmer) and grid-like white patterns (perthitic texture). Common locations include Brazil, Russia, Ethiopia, and Colorado, USA. Seek stones with vibrant color and minimal fractures.

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