Mineral Information and Data:

Wilkmanite
Ni3Se4 [CNMNC approved formula]

Named for W. W. Wilkman, geologist.

IMA status : Approved Species 1964 ()
CLASSIFICATION 
Dana
(8th edition) :
02.10.02.01  
  (02) Sulfides - Including Selenides and Tellurides
  (02.10) where Am Bn Xp, with (m+n):p=3:4
  (02.10.02) Wilkmanite Group
  
Nickel-Strunz
(10th edition) :
02.DA.15
  (02) Sulfides
  (02.D) Metal Sulfides, M:S = 3:4 and 2:3
  (02.DA) M:S = 3:4
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  

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