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Feodosiyite

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Very rare chloride mineral
Feodosiyite
General
CategoryHalide mineral
Formula
(repeating unit)		Cu11Mg2Cl18(OH)8•16H2O
IMA symbolFdy
Crystal systemMonoclinic
Crystal classPrismatic (2/m)
(same H-M symbol)
Space groupP21/c
Unit cella = 12.90, b = 16.42
c = 11.96 ; β = 113.69° (approximated)
Identification
References

Feodosiyite is a very rare chloride mineral, just recently approved, with the formula Cu11Mg2Cl18(OH)8•16H2O. Its structure is unique. Feodosiyite comes from the Tolbachik volcano, famous for many rare fumarolic minerals. Chemically similar minerals, chlorides containing both copper and magnesium, include haydeeite, paratacamite-(Mg) and tondiite.

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. ^ "Feodosiyite: Feodosiyite mineral information and data". Mindat.org. Retrieved 2016-03-04.
  3. ^ Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Lykova, I.S., Vigasina, M.F., Britvin, S.N., Sidorov, E.G., and Pushcharovsky, D.Y. ,2015. Feodosiyite, IMA 2015-063. CNMNC Newsletter No. 28, December 2015, 1860; Mineralogical Magazine 79, 1859–1864
  4. "Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia - Mindat.org". Mindat.org. Retrieved 2016-03-12.
  5. "Haydeeite: Haydeeite mineral information and data". Mindat.org. Retrieved 2016-03-12.


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