Rock Identifier
Amazonite (Microcline feldspar, KAlSi3O8) — mineral
mineral

Amazonite

Microcline feldspar, KAlSi3O8

AI-generated identification · may be incorrect

Hardness of 6 on the Mohs scale, vibrant turquoise-green color with white striations, vitreous luster, and perfect two-directional cleavage.

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Physical properties

Hardness of 6 on the Mohs scale, vibrant turquoise-green color with white striations, vitreous luster, and perfect two-directional cleavage.

Formation & geological history

Forms in igneous and pegmatitic environments through slow cooling of potassium- and water-rich magma.

Uses & applications

Primarily used as a semi-precious gemstone in jewelry, for decorative carvings, and as a mineral specimen for collectors.

Geological facts

Its distinct green color was traditionally attributed to copper, but modern studies show it results from irradiation-induced lead and water defects.

Field identification & locations

Identified by its characteristic grid-like twinning and bright green-blue shade; major deposits occur in Colorado, Brazil, and Madagascar.