Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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Nontronite from
Coll de la Boquera, Mont-ras, Girona, Catalonia, Spain


Classification
Species:Nontronite
Formula:Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Pinite1
Paragonite1
Quartz1
Muscovite1
Kaolinite1
Data
Mineral Data:Click here to view Nontronite data
Locality Data:Click here to view Coll de la Boquera, Mont-ras, Girona, Catalonia, Spain
Data Identifiers
Mindat Occurrence Record ID:1430622
Long-form Identifier:1:3:1430622:0
GUID (UUID V4):0
Nearest other occurrences of Nontronite
35.9km (22.3 miles) ⓘAVE quarry, Can Sala, Riudarenes, Girona, Catalonia, Spain
36.7km (22.8 miles) ⓘMas Sever Quarry, Massabè, Sils, Girona, Catalonia, Spain
36.9km (22.9 miles) ⓘCan Súria quarry (Sant Ramón quarry; Guixeres quarry), Maçanet de la Selva, Girona, Catalonia, Spain
61.2km (38.0 miles) ⓘSant Marçal (San Marsal; Sant Marsal mines), Viladrau, Osona, Girona, Catalonia, Spain
88.8km (55.2 miles) ⓘCan Donadeu quarry, Sant Fost de Campsentelles, Vallès Oriental, Barcelona, Catalonia, Spain
References
Joan Rosell - Soledad Álvarez - Jordi Ibáñez (2021)
 
and/or  
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