Manganosite

Crystal System: Cubic
Status of Occurrence: Confirmed Occurrence
Distribution: Rare
Chemical Composition: Manganese oxide
Chemical Formula: MnO
Method(s) of Verification: Benallt Mine - XRD (Natural History Museum, x3434), showing a mixture of manganosite, hausmannite and pyrochroite.

Chemical Group:

  • Oxides & Hydroxides

Geological Context:

  • Hydrothermal
  • Metamorphic
Introduction: a relatively rare manganese oxide mineral; a member of the periclase group.
Occurrence in Wales: manganosite has been confirmed from just one locality in Wales, intimately associated with hausmannite and pyrochroite.

Key Localities:

  • Benallt Mine, Llŷn, Gwynedd: manganosite has been confirmed from this locality, associated with hausmannite and pyrochroite.

References:

There are no references for this specimen.