Argentojarosite
(repeating unit)AgFe3+3(SO4)2(OH)6 IMA symbol Agjrs[1] Strunz classification 7.BC.10 Dana classification 30.2.5.5 Crystal system Trigonal Crystal class Ditrigonal pyramidal (3m) Space group R3m Identification Color Yellow, yellow-brown, brown Crystal habit Coatings, fine-grained masses Cleavage {0001} distinct Mohs scale hardness 3.5-4.5 Luster Vitreous Streak Light yellow Specific gravity 3.66 Density 3.66 (measured), 3.81 (calculated) Optical properties Uniaxial (-) Pleochroism Dichroic,
O: Yellow,
E: Pale yellow References [2][3]
O: Yellow,
E: Pale yellow
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]
References
- ^ 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.
- ^ a b c Argentojarosite Archived 2019-04-06 at the Wayback Machine on mindat.org
- ^ a b Argentojarosite data sheet
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External links
- Argentojarosite on the Handbook of Mineralogy
Bibliography
- 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.
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