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Wood Opal from
Pizzocorno, Ponte Nizza, Pavia Province, Lombardy, Italy

Classification
Species:Opal var: Wood Opal
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
References
References:Barelli, V. (1835) Cenni di statistica mineralogica degli Stati di S.M. il Re di Sardegna, ovvero Catalogo ragionato della raccolta formatasi presso l'Azienda Generale dell'Interno. Tipografia Giuseppe Fodratti, Torino, 686 pp.; Jervis, G. (1874) I tesori sotterranei dell'Italia. Vol. 2: Regione dell’Appennino e vulcani attivi e spenti dipendentivi. Ermanno Loescher, Torino, XVIII+624 pp.
Data
Mineral Data:Click here to view Wood Opal data
Locality Data:Click here to view Pizzocorno, Ponte Nizza, Pavia Province, Lombardy, Italy
 
Mineral and/or Locality  
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