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Nontronite from
Sant Marçal (San Marsal; Sant Marsal mines), Montseny, Viladrau, Girona, Catalonia, Spain

Locality type:Adit
Classification
Species:Nontronite
Formula:Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Comments:ID by yellow-green color, physical properties, and association; not analyzed.
Confirmation
Validity:Unconfirmed/Questioned
References
References:Alfredo Petrov, field observations.
Data
Mineral Data:Click here to view Nontronite data
Locality Data:Click here to view Sant Marçal (San Marsal; Sant Marsal mines), Montseny, Viladrau, Girona, Catalonia, Spain
Nearest other occurrences of Nontronite
25.5km (15.8 miles) Mas Sever Quarry (Massabè; Massabé; Mas Ceber; Mas Sober; Mas Sabé), Massabè, Sils, La Selva de Mar, Girona, Catalonia, Spain
37.7km (23.4 miles) Can Donadeu quarry, Sant Fost de Campsentelles, Vallès Oriental, Barcelona, Catalonia, Spain
52.0km (32.3 miles) Berta quarry and mine, Sant Cugat del Vallès-El Papiol, Baix Llobregat, Barcelona, Catalonia, Spain
65.6km (40.8 miles) Elvira Mine (Rocabruna Mines), Bruguers, Gavà, Baix Llobregat, Barcelona, Catalonia, Spain
 
Mineral and/or Locality  
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