Tancaite-(Ce)

Tancaite-(Ce)
General
Category Molybdate mineral
Formula
(repeating unit)
FeCe(MoO4)3•3H2O
Strunz classification 7.GB.50
Crystal system Trigonal
Crystal class Rhombohedral (3)
H-M symbol: (3)
Space group R3
Unit cell a = 19.290, c = 47.251 [Å]
Identification
References [1]

Tancaite-(Ce) is a very rare molybdate mineral[1] with the formula FeCe(MoO4)3•3H2O. It was found in Punta de Su Seinargiu locality on Sardinia, Italy.[2][3] Red crystals of tancaite-(Ce) resemble modified cubes, but the mineral is trigonal (space group R-3).[1] The type locality of tancaite-(Ce) is also a place of discovery of other molybdate minerals, including thorium molybdates ichnusaite and nuragheite.[4]

References

  1. 1 2 3 Mindat
  2. Orlandi, P., and Bonaccorsi, E., 2010. Tancaite-(Ce), IMA 2009-097. CNMNC Newsletter, April 2010, 376; Mineralogical Magazine 74, 375-377
  3. "Tancaite-(Ce) - Mindat.org". Mindat.org. Retrieved 2016-03-06.
  4. "Punta de Su Seinargiu (Su Seinargiu; Su Senargiu), Sarroch, Cagliari Province, Sardinia, Italy - Mindat.org". Mindat.org. Retrieved 2016-03-06.
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