
mineral
Amazonite
Microcline feldspar (KAlSi3O8)
AI-generated identification · may be incorrectHardness 6-6.5 on Mohs scale, vibrant green to blue-green color, vitreous luster, triclinic crystal system, and two directions of good cleavage.
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Physical properties
Hardness 6-6.5 on Mohs scale, vibrant green to blue-green color, vitreous luster, triclinic crystal system, and two directions of good cleavage.
Formation & geological history
Formed in pegmatites and hydrothermal veins through the slow cooling of magma rich in potassium and water, often containing trace lead.
Uses & applications
Used primarily as a semi-precious gemstone in jewelry, for decorative carvings, and as a collector mineral specimen.
Geological facts
The characteristic blue-green color was long attributed to copper, but modern studies show it comes from trapped lead and water molecules inside the crystal structure.
Field identification & locations
Easily identified by its unique grid-like or tartan twinning pattern and distinct blue-green color; commonly sourced from Russia, Colorado, and Madagascar.