mineral

Amazonite

Microcline (KAlSi3O8)

Hardness: 6-6.5 Mohs; Color: Turquoise-green to blue-green with white mottling; Luster: Vitreous to pearly; Crystal structure: Triclinic; Cleavage: Perfect at two directions; Specific Gravity: 2.56-2.58

Hardness: 6-6
Color: Turquoise-green to blue-green with white mottling
Luster: Vitreous to pearly

Identified May 25, 2026More mineral →

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Physical properties

Formation & geological history

Formed in plutonic rocks like granite and pegmatites through the cooling of magma. Its distinctive color is caused by the presence of small amounts of lead and water within the feldspar structure.

Uses & applications

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

Geological facts

Known as the "Amazon Stone," it was named after the Amazon River, although no deposits have actually been found there. It is the official gemstone of Virginia, USA.

Field identification & locations

Identify in the field by its unique blue-green color and the presence of white streaks or 'schiller' effect (perthitic texture). Common locations include Russia, Colorado (Pikes Peak), Brazil, and Madagascar.