Phlogopite


Composition: KMg3AlSi3O10(OH)2
Crystal System : Monoclinic
Colours: Greyish-brown, red-brown, white, pale-green, pale-yellow, colourless
Lustre : Pearly
Hardness : 2.0-2.5
Specific Gravity : 2.76-2.90
References: Keller (1984)

Occurrence

  • Supergene
  • Country Rock