Mineral Information and Data:

Caswellsilverite
NaCrS2 [CNMNC approved formula]

Named To honor Dr. Caswell Silver, geologist associated with the University of New Mexico, Albuquerque, New Mexico, USA.

IMA status : Approved Species 1982 ()
CLASSIFICATION 
Dana
(8th edition) :
02.09.17.01  
  (02) Sulfides - Including Selenides and Tellurides
  (02.09) where Am Bn Xp, with (m+n):p=1:1
  (02.09.17) Caswellsilverite Group
  
Nickel-Strunz
(10th edition) :
02.FB.05
  (02) Sulfides
  (02.F) Sulfides of Arsenic, Alkalies; Sulfides with Halide, Oxide, Hydroxide, H2O
  (02.FB) With alkalies (without Cl, etc.)
  
Crystal system: Trigonal System
Point group (H-M): 3m (or 3 2/m) — hexagonal-scalenohedral
  
  
  

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