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Stilpnomelane from
Friar's Coat trial, Brithdir and Llanfachreth, Gwynedd, Wales, UK


Locality type:Trial
Classification
Species:Stilpnomelane
Formula:K4Fe482+[Si64Al8]O164(OH)52 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Stilpnomelane data
Locality Data:Click here to view Friar's Coat trial, Brithdir and Llanfachreth, Gwynedd, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:10606
Long-form Identifier:1:3:10606:7
GUID (UUID V4):0
Nearest other occurrences of Stilpnomelane
9.4km (5.8 miles) ⓘBrynycastell Mine, Dolgellau, Gwynedd, Wales, UK
19.3km (12.0 miles) ⓘCregenen (Cregennen), Arthog, Gwynedd, Wales, UK
47.7km (29.7 miles) ⓘYstrad Mine (Silurian Mine), Betws Garmon, Gwynedd, Wales, UK
53.3km (33.1 miles) ⓘTal y Fan, Caerhun, Conwy, Wales, UK
References
[Specimen in the Natural History Museum, London]
Mineralogical Magazine 1964 33 : 1032-1037
 
and/or  
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