mineral

Amazonite

Amazonite (Microcline) - K(AlSi3O8)

Hardness: 6-6.5 on the Mohs scale. Color: Green to bluish-green to white. Luster: Vitreous (glassy) to pearly. Crystal Structure: Triclinic. Cleavage: Perfect in two directions. Specific gravity: 2.56-2.58.

Hardness: 6-6
Color: Green to bluish-green to white
Luster: Vitreous (glassy) to pearly

Identified May 18, 2026More mineral →

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Physical properties

Formation & geological history

Formed primarily in pegmatites, hydrothermal veins, and occasionally in granites. Its color is attributed to the presence of small amounts of lead and water within the feldspar structure.

Uses & applications

Mainly used as a gemstone for jewelry (cabochons and beads) and as a collector's ornamental stone. Occasionally used in interior decor.

Geological facts

The name is derived from the Amazon River, though the mineral is not actually found there; it was likely confused with other green stones from that region in the past. It is also known as 'Amazon Stone'.

Field identification & locations

Identify in the field by its distinct green to turquoise-white mottled color and its characteristic grid-like twinning pattern and pearly cleavage planes. Commonly found in Colorado (USA), Brazil, Russia, and Madagascar.