mineral

Amazonite

Microcline (K(AlSi3O8))

Hardness: 6-6.5 (Mohs scale), Color: teal, turquoise, or green with white streaks, Luster: Vitreous to pearly, Crystal Structure: Triclinic, Cleavage: Perfect at two directions.

Hardness: 6-6

Identified July 20, 2026More mineral →

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Physical properties

Hardness: 6-6.5 (Mohs scale), Color: teal, turquoise, or green with white streaks, Luster: Vitreous to pearly, Crystal Structure: Triclinic, Cleavage: Perfect at two directions.

Formation & geological history

Forms primarily in granitic pegmatites, hydrothermal veins, and occasionally in metamorphic rocks. The green color is caused by the presence of small amounts of lead and water within the feldspar structure.

Uses & applications

Commonly used as a gemstone for jewelry (cabochons, beads), decorative carvings, and as a popular specimen for mineral collectors.

Geological facts

Amazonite is named after the Amazon River, although no deposits are actually found there; it was likely confused with other green stones from that region in the past. It is sometimes called 'Amazon Stone'.

Field identification & locations

Identified by its distinctive bluish-green color and 'perthitic' texture (white wavy lines). Commonly found in Russia, Brazil, Ethiopia, and the United States (notably Pikes Peak, Colorado).