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Opal from
Valcroze, Alzon, Le Vigan, Gard, Occitanie, France


02978810017363319904225.jpg
Opal-AN

Valcroze, Alzon, Le Vigan, Gard, Occitanie, France
02978810017363319904225.jpg
Opal-AN

Valcroze, Alzon, Le Vigan, Gard, Occitanie, France
02978810017363319904225.jpg
Opal-AN

Valcroze, Alzon, Le Vigan, Gard, Occitanie, France
Classification
Species:Opal
Formula:SiO2 · nH2O
Comments:Described as opale by A. Ziserman (1964). such material turned to be allophane PXRD (analysed on philips PW3830 diffractometer by Michel Blondieau)
Confirmation
Validity:Erroneously Reported
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Valcroze, Alzon, Le Vigan, Gard, Occitanie, France
Data Identifiers
Mindat Occurrence Record ID:886957
Long-form Identifier:1:3:886957:9
GUID (UUID V4):0
Nearest other occurrences of Opal
31.0km (19.2 miles) ⓘRivièral, Le Bosc, Lodève, Hérault, Occitanie, France
32.5km (20.2 miles) ⓘRabejac Est, Le Puech, Lodève, Hérault, Occitanie, France
34.2km (21.3 miles) ⓘRoca Negra, Roquefort-sur-Soulzon, Millau, Aveyron, Occitanie, France
81.8km (50.8 miles) ⓘPhosphate occurrence, Fumade, Fontrieu, Castres, Tarn, Occitanie, France
95.9km (59.6 miles) ⓘLa Caravantié quarry, Peyrebrune, Montredon-Labessonnié, Castres, Tarn, Occitanie, France
98.9km (61.4 miles) ⓘLe Kaymar, Pruines, Rodez, Aveyron, Occitanie, France
References
Queneau, Patrice (n.d.) Personal Communication.
 
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