Fuchsite

Fuchsite
Name: Fuchsit-Glimmerquarzit.
Chemical: K(Al,Cr)2(AlSi3)O10(OH)2.
Clades: Micas; Phyllosilicates; Silicates; Lapidae.
Crystal system: Monoclinic.

Mineralogy
Chrome mica, is a chromium rich variety of the mineral muscovite.