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 green to blue-green color with white striations, and vitreous to pearly luster. Exhibits prismatic crystal structure with perfect cleavage.

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Physical properties

Hardness of 6 on the Mohs scale, vibrant green to blue-green color with white striations, and vitreous to pearly luster. Exhibits prismatic crystal structure with perfect cleavage.

Formation & geological history

Forms primarily in pegmatites and granitic rocks through slow cooling of magma rich in potassium and water, often millions of years old.

Uses & applications

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

Geological facts

Its distinctive green color was historically attributed to copper, but modern research shows it results from irradiation-induced lead and water defects.

Field identification & locations

Identified by its characteristic grid-like white pattern and blue-green color; commonly found in Brazil, Russia, Madagascar, and the USA.