Crystal System: Cubic
Status of Occurrence: Confirmed Occurrence
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.
- Oxides & Hydroxides
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.
- Benallt Mine, Llŷn, Gwynedd: manganosite has been confirmed from this locality, associated with hausmannite and pyrochroite.
There are no key localities for this specimen.
There are no references for this specimen.