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Chlorargyrite



Chlorargyrite is the mineral form of silver chloride (AgCl). Chlorargyrite occurs as a secondary mineral phase in the oxidation of silver mineral deposits. It crystallizes in the isometric - hexoctahedral crystal class. Typically massive to columnar in occurrence it also has been found as colorless to variably yellow cubic crystals. The color changes to brown or purple on exposure to light. It is quite soft with a Mohs hardness of 1 to 2 and dense with a specific gravity of 5.55. It is also known as cerargyrite and, when weathered by desert air, as horn silver. Chlorargyrite is water insoluble.

Additional recommended knowledge

It was first described in 1877 for occurrences in the Broken Hill district, New South Wales, Australia. The name is from the Greek, chloros for "pale green" and Latin for silver, argentum.

References

  • Palache, C., H. Berman, and C. Frondel (1951) Dana’s system of mineralogy, (7th edition), v. II, pp.11–15
  • Webmineral data
  • Mindat with location data
  • Mineral Data Publishing PDF
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Chlorargyrite". A list of authors is available in Wikipedia.
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