mineral
Fuchsite
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
Hardness: 2-3 (Mohs scale), Color: Emerald green to light green, Luster: Pearly to vitreous, Crystal Structure: Monoclinic (usually micaceous/flaky), Cleavage: Perfect basal, Specific Gravity: 2.8-3.0
Identified More mineral →
Explore Fuchsite in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 2-3 (Mohs scale), Color: Emerald green to light green, Luster: Pearly to vitreous, Crystal Structure: Monoclinic (usually micaceous/flaky), Cleavage: Perfect basal, Specific Gravity: 2.8-3.0
Formation & geological history
Formed through regional metamorphism. The green color is derived from chromium trivalent ions replacing aluminum in the crystal structure of muscovite. Commonly found in phyllites and schists.
Uses & applications
Metaphysical and ornamental use, minor source of chromium, and used in crushed forms for glittery aesthetic effects in crafts.
Geological facts
Fuchsite is named after the German chemist Johann Nepomuk von Fuchs. It is essentially a green variety of mica. When it occurs with ruby inclusions, it is the popular gemstone known as Ruby in Fuchsite.
Field identification & locations
Identified by its signature green color combined with a flaky, mica-like texture that sparkles (micaceous). Commonly found in Brazil, India, and Russia. Collectors look for high luster and deep green saturation.
More like this
Other mineral specimens
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Schist
Schist
Metamorphic
Sandstone with Mineral Veining or Crust
Sedimentary Sandstone (mostly SiO2 with Fe2O3 tinting)
sedimentary
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
Nephrite Jade
Nephrite
Mineral/Rock