mineral
Amazonite
Microcline (Amazonite variety), KAlSi3O8
Hardness: 6-6.5 (Mohs scale), Color: Bluish-green to green, Luster: Vitreous, 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: Bluish-green to green, Luster: Vitreous, Crystal structure: Triclinic, Cleavage: Perfect in two directions, Specific gravity: 2.56-2.58
Formation & geological history
Forms in granitic pegmatites, often found alongside quartz, albite, and other feldspars.
Uses & applications
Used primarily as a gemstone, carved into cabochons, beads, and ornamental objects. Popular among collectors.
Geological facts
The distinct blue-green color of amazonite is believed to be caused by small quantities of lead and water in the feldspar structure.
Field identification & locations
Identified by its vivid greenish-blue color and typical feldspar cleavage. Commonly found in locations like Colorado (USA), Brazil, Madagascar, and Russia.
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sedimentary
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral
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Mineral
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Mineral/Rock