mineral
Amazonite
Amazonite (KAlSi3O8)
AI-generated identification · may be incorrectHardness: 6-6.5 (Mohs scale); Color: green to blue-green; Luster: Vitreous; Crystal Structure: Triclinic; Cleavage: Perfect; Specific Gravity: 2.56-2.58
- Hardness
- 6-6
- Color
- green to blue-green
- Luster
- Vitreous
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Physical properties
Hardness: 6-6.5 (Mohs scale); Color: green to blue-green; Luster: Vitreous; Crystal Structure: Triclinic; Cleavage: Perfect; Specific Gravity: 2.56-2.58
Formation & geological history
Formed in igneous environments, specifically granitic pegmatites and hydrothermal veins. Its distinct green color is caused by the presence of lead and water within the feldspar structure.
Uses & applications
Used primarily as a gemstone for jewelry, ornamental carvings, and as a popular specimen for mineral collectors.
Geological facts
Amazonite is a variety of Microcline feldspar. Despite its name, it is not actually found in the Amazon River, though it is found in other parts of Brazil.
Field identification & locations
Identify in the field by its distinct teal or turquoise color and pearly to vitreous luster on cleavage planes. Commonly found in Colorado (USA), Brazil, Russia, and Madagascar.
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