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A mineral composed of a combined salt of Sodium nitrate and Sodium sulfite. Darapskite occurs naturally in the nitrate ores of the Atacama desert in Chile and the Limestone caves in Texas. It has also been found as an efflorescence on the Plaster of a 15th century church in the Netherlands (Holtkamp and Heijnen 1991).

Synonyms and Related Terms

darapskite (Port.); Darapskit (Deut.)

Physical and Chemical Properties

Composition Na3(NO3)(SO4)-H2O

Resources and Citations

  • M.Holtkamp, W.Heijnen, "The Mineral Darapskite in the Efflorescence on Two Dutch Churches" Studies in Conservation, 36:175-178, 1991.