mineral
Amazonite
Microcline Feldspar (KAlSi3O8)
AI-generated identification · may be incorrectHardness: 6-6.5 (Mohs scale), Color: Green, blue-green, Luster: Vitreous to pearly, Crystal structure: Triclinic, Cleavage: Perfect in two directions, Specific gravity: 2.56-2.58
- Hardness
- 6-6
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Physical properties
Hardness: 6-6.5 (Mohs scale), Color: Green, blue-green, Luster: Vitreous to pearly, Crystal structure: Triclinic, Cleavage: Perfect in two directions, Specific gravity: 2.56-2.58
Formation & geological history
Forms in granitic pegmatites and some other igneous rocks. The green color is often attributed to trace amounts of lead and water.
Uses & applications
Used primarily as a gemstone for jewelry and ornamental carving, as well as a popular mineral for collectors.
Geological facts
Amazonite is named after the Amazon River, although it is doubtful that green feldspar occurs in the Amazon area. It has been used for over 2,000 years in jewelry and ornamental objects.
Field identification & locations
Identifiable by its distinct blue-green color and cleavage planes. Commonly found in pegmatite veins in locations such as Colorado (USA), Russia, Madagascar, and Brazil.
