Mineral Information and Data:

Ferronigerite-2N1S
(Al,Fe,Zn)2(Al,Sn)6O11(OH) [CNMNC approved formula]

Named after its locality (Egbe district, Nigeria) and FERRO (Iron). (S=Spinel, N=Nolanite Layers).

IMA status : Approved Species 1947 ()
CLASSIFICATION 
Dana
(8th edition) :
07.11.08.01  
  (07) Multiple Oxides
  (07.11) as titano-oxides with [4] and [6] substitutions
  (07.11.08) Nigerite Group (Sn>Ti)
  
Nickel-Strunz
(10th edition) :
04.FC.20
  (04) Oxides and Hydroxides
  (04.F) Hydroxides (without V or U)
  (04.FC) Hydroxides with OH, without H2O; corner-sharing octahedra
  
Crystal system: Trigonal System
Point group (H-M): 3m (or 3 2/m) — hexagonal-scalenohedral
  
  
  

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