Iowaite


Composition: Mg6Fe3+2(OH)16Cl2.4H2O
Crystal System : Trigonal
Colours: Yellow, dark green-blue
Lustre : Greasy
Hardness : 1.5
Specific Gravity : 2.09
References: Gebhard (1999)

Occurrence

  • Supergene
  • 2nd Oxidation Zone