Mineral Information and Data:

Berzelianite
Cu2-xSe(x0.12) [CNMNC approved formula]

Named after Jons Jacob Berzelius (1779-1848), Swedish chemist who discovered the element selenium.

IMA status : Valid species (Pre-IMA 1850) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
02.04.10.01  
  (02) Sulfides - Including Selenides and Tellurides
  (02.04) where Am Bn Xp, with (m+n):p=2:1
  (02.04.10)
  
Nickel-Strunz
(10th edition) :
02.BA.15a
  (02) Sulfides
  (02.B) Metal Sulfides, M:S > 1:1 (mainly 2:1)
  (02.BA) With Cu, Ag, Au
  
Crystal system: Cubic System
Point group (H-M): m3m (or 4/m 3 2/m) — hexoctahedral
  
  
  

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