Montmorillonite, Goethite

Specimen ID: FTX-88K

Mineral(s)
Montmorillonite : (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2·nH2O
Goethite : α-Fe3+O(OH)
Locality
Mindat locality:
Events

Photo added to mindat.org

Collection and photo Giorgio Bortolozzi.
Giorgio Bortolozzi - 11th December 2013
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