Routhierite

Rare thallium sulfosalt mineral
(repeating unit)Tl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6IMA symbolRtr[1]Strunz classification2.GA.40Crystal systemTetragonalCrystal classDitetragonal pyramidal (4mm)
H-M symbol: (4mm)Space groupI4mmUnit cella = 9.9821(11),
c = 11.3122(12) [Å]; Z = 4IdentificationColorViolet-redCrystal habitAnhedral grains, xenomorphic grains and veinletsTwinningMicroscopic polysynthetic twin lamellaeCleavage2; two perpendicularMohs scale hardness3.5LusterMetallicDiaphaneityOpaqueDensity5.83PleochroismWeakReferences[2][3][4]

Routhierite is a rare thallium sulfosalt mineral with formula Tl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6.

It was first described in 1974 for an occurrence in the Jas Roux deposit in the French Alps.[3] It was named after French geologist Pierre Routhier (1916–2008).[5] It is also reported from the Northern Ural Mountains, Russia and the Thunder Bay district of Ontario, Canada.[2]

References

  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 Handbook of Mineralogy
  3. ^ a b "Routhierite". mindat.org the mineral database.
  4. ^ Routhierite Mineral Data
  5. ^ Biography in french (archived)
  • "Routhierite". museum of Paris Ecole des mines.
  • mineralatlas.com


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