Mineral Information and Data:

Woodruffite
Zn2Mn4+5O12 • 4H2O [CNMNC approved formula]

Named for Samuel Woodruff, late-nineteenth-century miner and mineral collector at Franklin, who collected and preserved many of the finest specimens found at that locality.

IMA status : Valid species (Pre-IMA 1953) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
07.08.01.02  
  (07) Multiple Oxides
  (07.08) where A B (O)2 · x(H2O)
  (07.08.01)
  
Nickel-Strunz
(10th edition) :
04.FL.25
  (04) Oxides and Hydroxides
  (04.F) Hydroxides (without V or U)
  (04.FL) Hydroxides with H2O +- (OH); sheets of edge-sharing octahedra
  
Crystal system:  
Point group (H-M):
  
  
  

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