Whitlockite


Composition: Ca9Mg(PO3OH)(PO4)6
Crystal System : Trigonal
Colours: Colourless, grey-white, pale-pink, pale-yellow
Lustre : Vitreous, resinous
Hardness (H) : 5
Specific Gravity (S.G) : 3.12

Distribution

Extremely rare. Second oxidation zone, 28 Level, E.49 Stope.

Occurrence

  • Supergene
  • 2nd Oxidation Zone

Paragenetic and General Notes

Occurs with manganese oxides on hydroxylapatite lining a vug in the type specimen for hermannroseite. Conichalcite and pseudomalachite are also associated.