Bukovite

Bukovite is a rare selenide mineral with formula Tl2Cu3FeSe4. It is a brown to black metallic mineral which crystallizes in the tetragonal system.[2]

Bukovite
Bukovite: metallic grayish-brown grains are noted by the two red dots
General
CategorySelenide - Bukovite group
Formula
(repeating unit)
Tl2(CuFe)4Se4
IMA symbolBko[1]
Strunz classification2.BD.30
Dana classification2.5.5.2
Crystal systemTetragonal
Crystal classDitetragonal dipyramidal (4/mmm)
H-M symbol: (4/m 2/m 2/m)
Space groupI4/mmm
Unit cellV = 216.58 Å3
Identification
ColorGrayish-brown
CleavageDistinct/Good: Good on {001} imperfect on {100}
Mohs scale hardness2
Lustermetallic
Diaphaneityopaque
Specific gravity7.40 (calculated)
References[2][3]

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


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