A mineral composed of a combined salt of nitrate sodium nitrate and sulfate sodium sulfate. 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.)
M.Holtkamp, W.Heijnen, "The Mineral Darapskite in the Efflorescence on Two Dutch Churches" Studies in Conservation, 36:175-178, 1991.
- Encyclopedia Britannica, http://www.britannica.com Comment: "nitrate and iodate minerals." Encyclopdia Britannica. 10 Nov. 2004 .