mineral

Fuchsite

Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)

AI-generated identification · may be incorrect

Hardness: 2-2.5 on Mohs scale; Color: emerald green to light green; Luster: Pearly to vitreous; Crystal structure: Monoclinic; Cleavage: Perfect basal.

Hardness: 2-2
Color: emerald green to light green
Luster: Pearly to vitreous

Identified July 3, 2026More mineral →

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Physical properties

Hardness: 2-2.5 on Mohs scale; Color: emerald green to light green; Luster: Pearly to vitreous; Crystal structure: Monoclinic; Cleavage: Perfect basal.

Formation & geological history

Formed through regional metamorphism in phyllites and schists. The presence of chromium replaces aluminum in the muscovite structure, giving it the green color.

Uses & applications

Used primarily as an ornamental stone, as a pigment in some paints, and in the metaphysical/collecting community. Sometimes categorized as 'green mica'.

Geological facts

Fuchsite is named after the German chemist and mineralogist Johann Nepomuk von Fuchs. It is a variety of muscovite mica rather than a separate mineral species.

Field identification & locations

Identify by its micaceous habit (ability to flake into thin sheets) and characteristic shimmering green color. Commonly found in Brazil, India, and Russia.