Bukovite
(repeating unit)Tl2(CuFe)4Se4 IMA symbol Bko[1] Strunz classification 2.BD.30 Dana classification 2.5.5.2 Crystal system Tetragonal Crystal class Ditetragonal dipyramidal (4/mmm)
H-M symbol: (4/m 2/m 2/m) Space group I4/mmm Unit cell V = 216.58 Å3 Identification Color Grayish-brown Cleavage Distinct/good: Good on {001} imperfect on {100} Mohs scale hardness 2 Luster Metallic Diaphaneity Opaque Specific gravity 7.40 (calculated) References [2][3]
H-M symbol: (4/m 2/m 2/m)
Bukovite is a rare selenide mineral with formula Tl2Cu3FeSe4. It is a brown to black metallic mineral which crystallizes in the tetragonal system.[2]
It was first described in 1971 for an occurrence in the Bukov uranium mine, Rožná deposit, Vysočina Region, Moravia, Czech Republic.[3] It has also been reported in Skrikerum, near Tryserum, Kalmar, Sweden; near Vernet-la-Varenne, Puy-de-Dôme, France; and Tuminico, Sierra de Cacho, La Rioja Province, Argentina.[2]
See also
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 Handbook of Mineralogy
- ^ a b http://www.mindat.org/min-797.html Mindat
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