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Opal from
Daroeira Mine, Martim Longo, Alcoutim, Faro, Portugal


Locality type:Mineral Occurrence Area
Classification
Species:Opal
Formula:SiO2 · nH2O
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
SEM-EDS
Raman Spectroscopy
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Daroeira Mine, Martim Longo, Alcoutim, Faro, Portugal
Data Identifiers
Mindat Occurrence Record ID:1330512
Long-form Identifier:1:3:1330512:7
GUID (UUID V4):0
Nearest other occurrences of Opal
33.0km (20.5 miles) ⓘBalança Mine, Alcaria Ruiva, Mértola, Beja, Portugal
70.5km (43.8 miles) ⓘCêrro da Oca Mine, Vale de Vargo, Vila Nova de São Bento e Vale de Vargo, Serpa, Beja, Portugal
77.7km (48.3 miles) ⓘPreguiça Mine, Sobral da Adiça, Moura, Beja, Portugal
80.0km (49.7 miles) ⓘHerdade dos Pendões Mine, São Luís, Odemira, Beja, Portugal
References
Alves, Pedro (n.d.) Personal communication.
 
and/or  
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