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Biotite from
Grylls Bunny, Botallack Mine, Botallack, St Just, Cornwall, England, UK


Locality type:Open-Cast Mine
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Grylls Bunny, Botallack Mine, Botallack, St Just, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:2028632
Long-form Identifier:1:3:2028632:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.2km (0.1 miles) ⓘCrowns Rock, Cliff outcrops, Botallack, St Just, Cornwall, England, UK
2.6km (1.6 miles) ⓘCarn Bosavern, St Just, Cornwall, England, UK
15.5km (9.7 miles) ⓘTrencrom Hill, Trencrom, Ludgvan, Cornwall, England, UK
23.4km (14.6 miles) ⓘWolf Rock, Cornwall, England, UK
23.7km (14.7 miles) ⓘTregonning Hill, Breage, Cornwall, England, UK
30.7km (19.1 miles) ⓘEast Wheal Grenville, Grenville United Mines, Troon, Camborne, Cornwall, England, UK
30.8km (19.2 miles) ⓘSouth Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
35.4km (22.0 miles) ⓘLushington Cove, Porthtowan, St Agnes, Cornwall, England, UK
46.1km (28.7 miles) ⓘPendennis Head, Falmouth, Cornwall, England, UK
59.3km (36.9 miles) ⓘDyer's Quarry, Chytane, St Enoder, Cornwall, England, UK
References
Kirat, E (2022) Magnetite Composition in Skarns Associated with the Land's End Granite, SW England. University of Exeter.
 
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