Mineral Information and Data:

Chenguodaite
Ag9FeTe2S4 [CNMNC approved formula]

Named for Chen Guoda (1912-2004), geologist and the founder of the Geological Department of Central South University, China.

IMA status : Approved Species 2005 ()
CLASSIFICATION 
Dana
(8th edition) :
03.07.20.01  
  (03) Sulfides - Sulfosalts
  (03.07) where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.07.20)
  
Nickel-Strunz
(10th edition) :
02.BA.60
  (02) Sulfides
  (02.B) Metal Sulfides, M:S > 1:1 (mainly 2:1)
  (02.BA) With Cu, Ag, Au
  
Crystal system:  
Point group (H-M):
  
  
  

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