metamorphic
Fuchsite (Green Muscovite / Verdite)
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
AI-generated identification · may be incorrectHardness 2-3 on the Mohs scale; emerald to forest green color with a pearly to vitreous, micaceous sparkling luster; monoclinic crystal system, exhibiting perfect basal cleavage and a specific gravity of around 2.8-2.9.
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Physical properties
Hardness 2-3 on the Mohs scale; emerald to forest green color with a pearly to vitreous, micaceous sparkling luster; monoclinic crystal system, exhibiting perfect basal cleavage and a specific gravity of around 2.8-2.9.
Formation & geological history
Formed through regional metamorphism in phyllites, schists, and serpentinites where chromium metasomatism occurs within ultramafic or quartz-rich rocks.
Uses & applications
Commonly carved and polished into decorative shapes such as eggs, spheres, and cabochons; occasionally used as an ornamental gemstone or architectural stone.
Geological facts
Fuchsite is named in honor of the German chemist and mineralogist Johann Nepomuk von Fuchs. When intergrown with quartz, it forms green aventurine.
Field identification & locations
Identifiable by its characteristic emerald-green color, soft micaceous flaky texture, and silvery flash under direct light. Notable localities include Brazil, Russia (Urals), Zimbabwe, and India.
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