mineral

Amazonite

Microcline (KAlSi3O8)

Hardness: 6-6.5 Mohs scale; Color: Pale green to turqouise-blue; Luster: Vitreous (glassy) to pearly; Crystal Structure: Triclinic; Cleavage: Perfect; Specific Gravity: 2.56-2.58

Hardness: 6-6
Color: Pale green to turqouise-blue
Luster: Vitreous (glassy) to pearly

Identified July 15, 2026More mineral →

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Physical properties

Hardness: 6-6.5 Mohs scale; Color: Pale green to turqouise-blue; Luster: Vitreous (glassy) to pearly; Crystal Structure: Triclinic; Cleavage: Perfect; Specific Gravity: 2.56-2.58

Formation & geological history

Formed in igneous rocks, specifically granites and pegmatites, through the cooling of silica-rich magma; its color is attributed to the presence of lead and water within the feldspar structure.

Uses & applications

Mainly used as a gemstone for jewelry, beads, and cabochons; also popular as a decorative carving material and collector specimen.

Geological facts

Named after the Amazon River, though it is not actually found there; it was historically confused with other green stones found in the region. It is often called the 'Hope Stone'.

Field identification & locations

Identify by its distinct bluish-green color and 'chiller' effect (white streaking or mottled appearance). Commonly found in Russia, Brazil, Ethiopia, and the United States (Colorado).