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Birnessite from
Treburland Manganese Mine (Treburland manganese deposits), Altarnun, Cornwall, England, UK


Locality type:Deposit
Classification
Species:Birnessite
Formula:(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Birnessite data
Locality Data:Click here to view Treburland Manganese Mine (Treburland manganese deposits), Altarnun, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:2000
Long-form Identifier:1:3:2000:8
GUID (UUID V4):0
Nearest other occurrences of Birnessite
12.6km (7.8 miles) ⓘGreystone Quarry, Lezant, Cornwall, England, UK
82.8km (51.4 miles) ⓘPenberthy Croft Mine, St Hilary, Cornwall, England, UK
References
Young, Brian (1988) Birnessite from Treburland Mine, Altarnun, Cornwall. Mineralogical Magazine, 52 (366) 415-416 doi:10.1180/minmag.1988.052.366.19
Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp.
 
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