Mineral Information and Data:

Gruzdevite
Cu6Hg3Sb4S12 [CNMNC approved formula]

Named To honor the Russian mineralogist, V.S. Gruzdev (1938-1977).

IMA status : Approved Species 1981 ()
CLASSIFICATION 
Dana
(8th edition) :
03.04.13.03  
  (03) Sulfides - Sulfosalts
  (03.04) where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.04.13)
  
Nickel-Strunz
(10th edition) :
02.GA.30
  (02) Sulfides
  (02.G) Sulfarsenites, sulfantimonites, sulfbismuthites
  (02.GA) Neso-sulfarsenites, etc. without additional S
  
Crystal system: Trigonal System
Point group (H-M): 3 — pyramidal
  
  
  

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