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Montmorillonite from
Kerroc'h, Guern, Pontivy, Morbihan, Brittany, France


Classification
Species:Montmorillonite
Formula:(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Comments:Yellow-grey to greenish crusts, on pitchblende and quartz.
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Ningyoite
Pitchblende
Quartz
Data
Mineral Data:Click here to view Montmorillonite data
Locality Data:Click here to view Kerroc'h, Guern, Pontivy, Morbihan, Brittany, France
Data Identifiers
Mindat Occurrence Record ID:287062
Long-form Identifier:1:3:287062:5
GUID (UUID V4):0
Nearest other occurrences of Montmorillonite
92.3km (57.4 miles) ⓘTy Lan, Plovan, Quimper, Finistère, Brittany, France
References
R. Pierrot, L. Chauris, C Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
 
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