Mineral Information and Data:

Gupeiite
Fe3Si [CNMNC approved formula]

Named for the eastern passageway, Gupeikou, of the Great Wall of China.

IMA status : Approved Species 1984 ()
CLASSIFICATION 
Dana
(8th edition) :
01.01.23.02  
  (01) Native Elements
  (01.01) with metallic elements other than the platinum group
  (01.01.23) Suessite Group silicides
  
Nickel-Strunz
(10th edition) :
01.BB.30
  (01) Elements
  (01.B) Metallic Carbides, Silicides, Nitrides and
  (01.BB) Silicides
  
Crystal system: Cubic System
Point group (H-M): m3m (or 4/m 3 2/m) — hexoctahedral
  
  
  

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