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Gilbertite from
Stenna Gwyn Mine (Stennagwyn Mine), Foxhole, St Stephen-in-Brannel, Cornwall, England, UK

Locality type:Mine
Classification
Species:Muscovite var: Gilbertite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
References
References:Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Rudler, F.W. (1905): A Handbook to a Collection of the Minerals of the British Islands, Mostly Selected from the Ludlam Collection. HMSO Publications (London), 241 pp.; Ussher, W.A.E., Barrow, G., and MacAlister, D.A. (1909): The Geology of the Country Around Bodmin and St Austell. HMSO Publications (London), p. 110
Associated Minerals Based on Photo Data:
Apatite1 photo of Gilbertite associated with Apatite at this locality.
Fluorite1 photo of Gilbertite associated with Fluorite at this locality.
Data
Mineral Data:Click here to view Gilbertite data
Locality Data:Click here to view Stenna Gwyn Mine (Stennagwyn Mine), Foxhole, St Stephen-in-Brannel, Cornwall, England, UK
Nearest other occurrences of Gilbertite
1.8km (1.1 miles) Trethosa China Clay Pit, Treviscoe, St Stephen-in-Brannel, Cornwall, England, UK
4.6km (2.8 miles) Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
5.8km (3.6 miles) West Carclaze Pit, Carluddon, Treverbyn, Cornwall, England, UK
7.6km (4.7 miles) Criggan Mine (Criggan Consols), Criggan, Roche, Cornwall, England, UK
10.3km (6.4 miles) Colcerrow Quarry (Gready Quarry), Lanlivery, Cornwall, England, UK
28.4km (17.6 miles) Lower Kergilliack Quarry, Budock, Cornwall, England, UK
31.0km (19.3 miles) Halvosso Quarry (Halvasso Quarry; Kessel Downs Quarry), Mabe, Cornwall, England, UK
33.1km (20.6 miles) Balmynheer Mine, Porkellis, Wendron, Cornwall, England, UK
34.1km (21.2 miles) Cheesewring Quarry, Minions, Linkinhorne, Cornwall, England, UK
35.0km (21.7 miles) Fatwork Mine, East Wheal Lovell (incl. Tregonebris Mine), Trewennack, Wendron, Cornwall, England, UK
 
Mineral and/or Locality  
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