Argentite
In
polymorph, acanthite.[2][3] The International Mineralogical Association has decided to reject argentite as a proper mineral.[3]
The name "argentite" sometimes also refers to pseudomorphs of argentite: specimens of acanthite which still display some of the outward signs of the cubic crystal form, even though their actual crystal structure is monoclinic due to the lower temperature.[2][1] This form of acanthite is occasionally found as uneven cubes and octahedra, but more often as dendritic or earthy masses, with a blackish lead-grey color and metallic luster.[4]
Argentite belongs to the
W. Haidinger. Old names for the species are Glaserz, silver-glance and vitreous silver. A related copper-rich mineral occurring e.g. in Jalpa, Zacatecas, Mexico, is known as jalpaite.[4]
References
- ^ a b "Argentit" (in German). Mineralienatlas Lexikon.
- ^ a b c Argentite, Mindat.org
- ^ a b c Argentite Mineral Data, WebMineral.com
- ^ a b Spencer 1911.
- This article incorporates text from a publication now in the public domain: Spencer, Leonard James (1911). "Argentite". In Chisholm, Hugh (ed.). Encyclopædia Britannica. Vol. 2 (11th ed.). Cambridge University Press. p. 475.
External links
Look up argentite in Wiktionary, the free dictionary.
Wikimedia Commons has media related to Argentite.
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