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

Amazonite

Microcline feldspar, KAlSi3O8

AI-generated identification · may be incorrect

Mohs hardness of 6 to 6.5, distinct green to blue-green color, vitreous luster, triclinic crystal system, and good cleavage.

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Physical properties

Mohs hardness of 6 to 6.5, distinct green to blue-green color, vitreous luster, triclinic crystal system, and good cleavage.

Formation & geological history

Forms in granitic pegmatites and hydrothermal veins through slow cooling of magma rich in potassium and water.

Uses & applications

Used primarily for ornamental carvings, polished cabochons in jewelry, and as a collector's mineral specimen.

Geological facts

The vibrant green-blue color is caused by trace amounts of lead and water within the crystal lattice structure.

Field identification & locations

Identify by its unique grid-like twinning patterns and distinct turquoise-green hue; found in Russia, Brazil, and the USA.