mineral
Amethyst with Quartz Cluster
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, purple and clear/white coloration, vitreous luster, hexagonal crystal system, and conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, purple and clear/white coloration, vitreous luster, hexagonal crystal system, and conchoidal fracture.
Formation & geological history
Formed in hydrothermal veins and gas cavities within volcanic rocks over millions of years through the cooling of silica-rich solutions.
Uses & applications
Used primarily in jewelry, decorative ornamental displays, and crystal collecting.
Geological facts
The purple color in amethyst is caused by natural irradiation and trace amounts of iron impurities. This specimen shows a striking combination of pale amethyst druzy with larger clear quartz crystals.
Field identification & locations
Easily identified by its distinct purple hue, crystal habit, and high hardness which scratches glass. Commonly found in Brazil, Uruguay, and Madagascar.
