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Opal from Lazio, Italy

03208870014953132204463.jpg
Opal

Allumiere Quarries, Allumiere, Metropolitan City of Rome Capital, Lazio, Italy
00714640014950570907350.jpg
Opal, etc.

Vallerano Quarries, Valleranello, Rome, Metropolitan City of Rome Capital, Lazio, Italy
06769350014947084358966.jpg
Opal-AN, etc.

Campomorto Quarry, Pietra Massa Locality, Montalto di Castro, Viterbo Province, Lazio, Italy
05018940014950464022855.jpg
Opal, etc.

Vallerano Quarries, Valleranello, Rome, Metropolitan City of Rome Capital, Lazio, Italy
06074160014995807705172.jpg
Opal

Allumiere Quarries, Allumiere, Metropolitan City of Rome Capital, Lazio, Italy
04980940014971801077500.jpg
Opal, etc.

Vallerano Quarries, Valleranello, Rome, Metropolitan City of Rome Capital, Lazio, Italy
09954360014975004653155.jpg
Opal-AN, etc.

Campomorto Quarry, Pietra Massa Locality, Montalto di Castro, Viterbo Province, Lazio, Italy
03313410015039612054011.jpg
Opal, etc.

Vallerano Quarries, Valleranello, Rome, Metropolitan City of Rome Capital, Lazio, Italy
03208870014953132204463.jpg
Opal

Allumiere Quarries, Allumiere, Metropolitan City of Rome Capital, Lazio, Italy
00714640014950570907350.jpg
Opal, etc.

Vallerano Quarries, Valleranello, Rome, Metropolitan City of Rome Capital, Lazio, Italy
06769350014947084358966.jpg
Opal-AN, etc.

Campomorto Quarry, Pietra Massa Locality, Montalto di Castro, Viterbo Province, Lazio, Italy
01394680014950570909281.jpg
Opal, etc.

Vallerano Quarries, Valleranello, Rome, Metropolitan City of Rome Capital, Lazio, Italy
Italy
 
  • Lazio
    • Latina Province
      • Ponza
        • Ponza Island
E. Passaglia et al. , Eur. Journ. Mineral. , 1995, 7, pp. 429-438.
    • Metropolitan City of Rome Capital
Federico M., Gianfagna A. - Al, Ca and Fe3+ bearing opal pseudomorph after melilite in ejecta and lavas of the Alban Hills, Italy. pp. 149-157
      • Allumiere
Morbidelli,L.:”Studio geopetrografico del complesso vulcanico tolfetano-cerite (Lazio).IV:Le manifestazioni vulcaniche acide del settore civitavecchiese tolfetano”,Quad.CNR,4,1-173 (1966).
Negretti,G.C.
Lombardi,G.
I minerali del Museo Archeominerario "Klitsche de la Grange"Allumiere,Provincia di Roma.(2000)
[Opal-A var. Opal-AN] Napoleoni, C., Della Ventura, G., Conte, A., Lucci, F. and Di Domenico, D. (2021) Opale e silice microcristallina nei Monti della Tolfa-Allumiere. Il Cercapietre, 3-21.
[Opal-A var. Opal-AN] Napoleoni, C., Della Ventura, G., Conte, A., Lucci, F. and Di Domenico, D. (2021) Opale e silice microcristallina nei Monti della Tolfa-Allumiere. Il Cercapietre, 3-21.
De Michele, V. (1974). Guida mineralogica d'Italia. Istituto Geografico De Agostini, Novara, 2 vol.
      • Campagnano di Roma
Eur. J. Mineral. , 1993, 5, pp. 53-58
      • Monte Compatri
        • Laghetto (Laghetto di Montecompatri)
Carlini, R., and Signoretti, E. (2018) Il Lazio classico: le cave di leucitite della provincia di Roma (Vallerano, Laghetto e Osa). Fossils & Minerals, 4, 24-53.
      • Rome
        • Osteria dell'Osa
Carlini, R., and Signoretti, E. (2018) Il Lazio classico: le cave di leucitite della provincia di Roma (Vallerano, Laghetto e Osa). Fossils & Minerals, 4, 24-53.
        • Valleranello
Carlini, R., and Signoretti, E. (2018) Il Lazio classico: le cave di leucitite della provincia di Roma (Vallerano, Laghetto e Osa). Fossils & Minerals, 4, 24-53.
Bortolozzi, Giorgio (n.d.) Personal Communication.
    • Viterbo Province
      • Capranica
Bortolozzi, Giorgio (n.d.) Personal Communication.
Bortolozzi, Giorgio (n.d.) Personal Communication.
Di Domenico Dario
      • Montalto di Castro
        • Pietra Massa Locality
[Opal-A var. Opal-AN] Passaglia, E. & Turconi, B. (1982): Silicati ed altri minerali di Montalto di Castro - VT. Rivista Mineralogica Italiana, 4/1982, 97-110.
      • Onano
Bortolozzi, Giorgio (n.d.) Personal Communication.
 
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