Opal

Specimen ID: M9D-JQ7

Mineral(s)
Opal : SiO2·nH2O
Locality
Mindat locality:
Pedro II, Piauí, Brazil
Dimensions
57mm x 49mm x 31mm
Events

Photo added to mindat.org

“Opal in the matrix.”
Edson Ferreira dos Santos - 17th April 2018
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