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Montmorillonite from
Great Retallack Mine, Perran Iron Lode (Great Perran Iron Lode), Perranzabuloe, Cornwall, England, UK


Locality type:Mine
Classification
Species:Montmorillonite
Formula:(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Montmorillonite data
Locality Data:Click here to view Great Retallack Mine, Perran Iron Lode (Great Perran Iron Lode), Perranzabuloe, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:7967
Long-form Identifier:1:3:7967:9
GUID (UUID V4):0
Nearest other occurrences of Montmorillonite
0.5km (0.3 miles) ⓘTreamble Mine (incl. Garden Quarry), Perran Iron Lode (Great Perran Iron Lode), Perranzabuloe, Cornwall, England, UK
35.4km (22.0 miles) ⓘDean Quarry, St Keverne, Cornwall, England, UK
46.6km (29.0 miles) ⓘGeevor Mine, Pendeen, St Just, Cornwall, England, UK
85.3km (53.0 miles) ⓘMeldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
85.7km (53.3 miles) ⓘMeldon Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
References
Collins, J.H. (1878): Mineralogical Magazine 2, 92-94
Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp.
 
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