mineral
Amazonite
Microcline feldspar (KAlSi3O8)
AI-generated identification · may be incorrectHardness 6 on Mohs scale; green to blue-green color; vitreous to pearly luster; triclinic crystal system; specific gravity 2.56.
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Physical properties
Hardness 6 on Mohs scale; green to blue-green color; vitreous to pearly luster; triclinic crystal system; specific gravity 2.56.
Formation & geological history
Forms in pegmatites and granitic rocks from cooling magma rich in potassium and trace lead impurities.
Uses & applications
Used primarily in ornamental jewelry, carved decorative objects, and as a collector's mineral specimen.
Geological facts
The vibrant blue-green color is caused by trace amounts of lead and water within the feldspar structure.
Field identification & locations
Identified by its characteristic grid-like twinning and distinct turquoise coloration; found in Brazil, Russia, and the USA.
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Granite
Granite (Phaneritic intrusive igneous rock)
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