Mineral Information and Data:

Manganarsite
Mn2+3As3+2O4(OH)4 [CNMNC approved formula]

Named after the composition (Manganese, Arsenic).

IMA status : Approved Species 1986 ()
CLASSIFICATION 
Dana
(8th edition) :
46.02.06.01  
  (46) Basic or Halogen-Containing Antimonites, Arsenites and Phosphites
  (46.02) with miscellaneous formulae
  (46.02.06)
  
Nickel-Strunz
(10th edition) :
04.JB.10
  (04) Oxides and Hydroxides
  (04.J) Arsenites, Antimonites, Bismuthites, Sulfites,
  (04.JB) Arsenites, antimonites, bismuthites; with additional anions, without H2O
  
Crystal system: Trigonal System
Point group (H-M): 32 — trapezoidal
  
  
  

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