mineral

Amazonite

Microcline feldspar (KAlSi3O8)

Hardness: 6 on the Mohs scale. Color: Light green to bluish-green. Luster: Vitreous to pearly. Crystal structure: Triclinic. Cleavage: Perfect in two directions at nearly right angles. Specific gravity: 2.56-2.58.

Hardness: 6 on the Mohs scale
Color: Light green to bluish-green
Luster: Vitreous to pearly

Identified August 5, 2026More mineral →

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Physical properties

Formation & geological history

Forms in granitic pegmatites and hydrothermal veins, crystallizing slowly from cooling magma rich in water and volatile elements, often incorporating trace amounts of lead and water.

Uses & applications

Used in lapidary work, making ornamental objects, beads, cabochons, and in crystal healing and metaphysical practices.

Geological facts

Despite its name, no amazonite is actually found in the Amazon River basin; the name likely originated from a confusion with green stones from that region or the Amazonian warrior women.

Field identification & locations

Identified by its distinctive bluish-green color and characteristic grid-like twinning pattern (tartan twinning) visible under magnification. Found in the USA, Russia, Madagascar, Brazil, and Canada.