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Argentojarosite

Summary

Argentojarosite is an iron sulfate mineral with the chemical formula AgFe3+3(SO4)2(OH)6. It is one of few iron sulfate minerals containing silver in its chemical formula as a dominant element.[2] Its type locality is the East Tintic Mountains, Utah.[2][3]

Argentojarosite
Argentojarosite found in Sonora, Mexico
General
CategorySulfate mineral
Formula
(repeating unit)		AgFe3+3(SO4)2(OH)6
IMA symbolAgjrs[1]
Strunz classification7.BC.10
Dana classification30.2.5.5
Crystal systemTrigonal
Crystal classDitrigonal pyramidal (3m)
Space groupR3m
Identification
ColorYellow, yellow-brown, brown
Crystal habitCoatings, fine-grained masses
Cleavage{0001} distinct
Mohs scale hardness3.5-4.5
LusterVitreous
StreakLight yellow
Specific gravity3.66
Density3.66 (measured), 3.81 (calculated)
Optical propertiesUniaxial (-)
PleochroismDichroic,
O: Yellow,
E: Pale yellow
References[2][3]

References edit

  1. ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. ^ a b c Argentojarosite Archived 2019-04-06 at the Wayback Machine on mindat.org
  3. ^ a b Argentojarosite data sheet
 
Wikimedia Commons has media related to Argentojarosite.

External links edit

  • Argentojarosite on the Handbook of Mineralogy

Bibliography edit

  • Palache, P.; Berman H.; Frondel, C. (1960). "Dana's System of Mineralogy, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. (Seventh Edition)" John Wiley and Sons, Inc., New York, pp. 565.