mineral

Amazonite

K(AlSi3O8) - Microcline Feldspar

Hardness: 6-6.5 on Mohs scale; Color: Light green to turquoise blue, often with white streaks; Luster: Vitreous to pearly; Crystal Structure: Triclinic; Cleavage: Perfect at two angles.

Hardness: 6-6
Color: Light green to turquoise blue, often with white streaks
Luster: Vitreous to pearly

Identified July 6, 2026More mineral →

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Physical properties

Hardness: 6-6.5 on Mohs scale; Color: Light green to turquoise blue, often with white streaks; Luster: Vitreous to pearly; Crystal Structure: Triclinic; Cleavage: Perfect at two angles.

Formation & geological history

Formed in plutonic rocks such as pegmatites and granites through the cooling of magma. Its distinct color is often attributed to lead impurities and water content within the feldspar lattice.

Uses & applications

Primarily used as a gemstone in jewelry, beads for bracelets and necklaces, and as ornamental stone for carvings or decorative objects.

Geological facts

Known as the "Stone of Courage" or "Amazon Stone," it is named after the Amazon River, although it is not actually found there. It was used by Ancient Egyptians for jewelry and amulets.

Field identification & locations

Identify by its unique 'schiller' or grid-like white patterns (perthitic texture) and distinctive sea-foam green color. Commonly found in Russia, Brazil, Madagascar, and the USA (Colorado). Look for the lack of light transparency compared to quartz.