Mineral Information and Data:

Norsethite
BaMg(CO3)2 [CNMNC approved formula]

Named for Keith Norseth (1927-1991), American engineering geologist, Westvaco trona mine, Wyoming, USA,.

IMA status : Approved Species 1960 ()
CLASSIFICATION 
Dana
(8th edition) :
14.02.02.01  
  (14) Anhydrous Carbonates
  (14.02) with Compound Formula A+ B++ (CO3)2
  (14.02.02) Norsethite Group
  
Nickel-Strunz
(10th edition) :
05.AB.30
  (05) Carbonates and Nitrates
  (05.A) Carbonates without additional anions, without H2O
  (05.AB) Alkali-earth (and other M2+) carbonates
  
Crystal system: Trigonal System
Point group (H-M): 32 — trapezoidal
  
  
  

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