Chlorargyrite

Source: Wikipedia, the free encyclopedia.
(Redirected from
Horn silver
)
Chlorargyrite
Specific gravity
5.556
Optical propertiesIsotropic
Refractive indexn = 2.071
References[2][3][4]

Chlorargyrite is the mineral form of

specific gravity
of 5.55. It is also known as cerargyrite and, when weathered by desert air, as horn silver. Bromian chlorargyrite (or embolite) is also common. Chlorargyrite is water-insoluble.

It occurs associated with

native silver, cerussite, iodargyrite, atacamite, malachite, jarosite and various iron–manganese oxides.[3]

It was first described in 1875 for occurrences in the Broken Hill district, New South Wales, Australia. The rich Bridal Chamber deposit at Lake Valley, Sierra County, New Mexico was almost pure chlorargyrite.[6] The name is from the Greek, chloros for "pale green" and Latin for silver, argentum.[4]

See also

References

  1. S2CID 235729616
    .
  2. ^ Chlorargyrite data on Mindat.org
  3. ^ a b "Handbook of Mineralogy" (PDF). Archived from the original (PDF) on 2016-03-04. Retrieved 2017-04-24.
  4. ^ a b Chlorargyrite data on Webmineral
  5. ^ Chisholm, Hugh, ed. (1911). "Cerargyrite" . Encyclopædia Britannica (11th ed.). Cambridge University Press.
  6. ^ O’Neill, J. Michael; et al. (2002). Geologic Investigations in the Lake Valley Area, Sierra County, New Mexico. Denver, CO: U.S. Department of the Interior, U.S. Geological Survey. Retrieved 3 February 2018.
  • Palache, C., H. Berman, and C. Frondel (1951) Dana's system of mineralogy, (7th edition), v. II, pp. 11–15