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Argentite

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Formula:
Ag2S
Crystal System:
Isometric
Dimorph of:
The name 'argentite' refers to the high-temperature form of silver sulphide, only stable over 177°C. Below this temperature, any samples of 'argentite' convert to acanthite.

The name argentite is therefore used (confusingly) by some to describe pseudo-cubic pseudomorphs of silver sulphide (acanthite) where the original crystal form of the high-temperature cubic argentite has remained. The correct way to label such specimens would be "acanthite, pseudo-cubic" or "acanthite, pseudomorphous after argentite".


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Chemical Properties of ArgentiteHide

Formula:
Ag2S

Crystallography of ArgentiteHide

Crystal System:
Isometric

Common AssociatesHide

Associated Minerals Based on Photo Data:
Silver1 photo of Argentite associated with Silver on mindat.org.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for ArgentiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Ramsdell, L.S. (1925) The crystal structure of some metallic sulfides. American Mineralogist: 10: 281-304.
Emmons, R.C., Stockwell, C.H., and Jones, R.H.B. (1926) Argentite and acanthite. American Mineralogist: 11: 326-328.
Palache, C., Berman, H., and Frondel, C. (1944) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged, 834pp.: 176-178.
Dana's New Mineralogy, 8th Edition (1997) by Gaines, et al., p. 42.

Internet Links for ArgentiteHide

Mineral and/or Locality  
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