Mineral Information and Data:

Nierite
Si3N4 [CNMNC approved formula]

Named for A. O. Nier (1912-1994), who was responsible for the now accepted measurement of the atmospheric N-isotope composition.

IMA status : Approved Species 1995 ()
CLASSIFICATION 
Dana
(8th edition) :
01.03.10.01  
  (01) Native Elements
  (01.03) with semi-metallic and non-metallic elements
  (01.03.10)
  
Nickel-Strunz
(10th edition) :
01.DB.05
  (01) Elements
  (01.D) Nonmetallic Carbides and Nitrides
  (01.DB) Nonmetallic nitrides
  
Crystal system: Trigonal System
Point group (H-M): 3m — ditrigonal-pyramidal
  
  
  

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