Mineral Information and Data:

Bukovite
Cu4Tl2Se4 [CNMNC approved formula]

Named for its occurrence at Bukov, Czechoslovakia.

IMA status : Approved Species 1971 ()
CLASSIFICATION 
Dana
(8th edition) :
02.05.05.02  
  (02) Sulfides - Including Selenides and Tellurides
  (02.05) where Am Bn Xp, with (m+n):p=3:2
  (02.05.05) Thalcusite Group
  
Nickel-Strunz
(10th edition) :
02.BD.30
  (02) Sulfides
  (02.B) Metal Sulfides, M:S > 1:1 (mainly 2:1)
  (02.BD) With Hg, Tl
  
Crystal system: Tetragonal System
Point group (H-M): 4/mmm (or 4/m 2/m 2/m) — ditetragonal-dipyramidal
  
  
  

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