Bukovite

Bukovite
	Bukovite: metallic grayish-brown grains are noted by the two red dots
General
Category	Selenide – Bukovite group
Formula; (repeating unit)	Tl2(CuFe)4Se4
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
\|re\|er}}	Metallic
Diaphaneity	Opaque
Specific gravity	7.40 (calculated)
References

Bukovite is a rare selenide mineral with formula Tl₂Cu₃FeSe₄. It is a brown to black metallic mineral which crystallizes in the tetragonal system.^[1]

It was first described in 1971 for an occurrence in the Bukov uranium mine, Rožná deposit, Vysočina Region, Moravia, Czech Republic.^[2] 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 .^[1]

References

↑ ^1.0 ^1.1 ^1.2 Handbook of Mineralogy
↑ ^2.0 ^2.1 http://www.mindat.org/min-797.html Mindat
↑ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine 85 (3): 291–320. doi:10.1180/mgm.2021.43. Bibcode: 2021MinM...85..291W.

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Original source: https://en.wikipedia.org/wiki/Bukovite. Read more

[Handbook-1] 1.0 ^1.1 ^1.2 Handbook of Mineralogy

[Mindat-2] 2.0 ^2.1 http://www.mindat.org/min-797.html Mindat

[3] Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine 85 (3): 291–320. doi:10.1180/mgm.2021.43. Bibcode: 2021MinM...85..291W.

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[2]

Bukovite

Topic: Chemistry

See also

References