Opal (Var: Opal-C), Obsidian

Specimen ID: E72-HJ5

Mineral(s)
Opal (Var: Opal-C) : SiO2·nH2O
Locality
Mindat locality:
Collections
Collected by:
Events

Photo added to mindat.org

Opal-C (= gel Cristobalite) as a crusting on Obsidian. Raúl J. Tauber Larry´s collection.
Raúl Jorge Tauber Larry - 13th April 2014
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