Mineral Information and Data:

Bementite
Mn7Si6O15(OH)8 [CNMNC approved formula]

Named for Clarence Sweet Bement (1843-1923), mineral collector of Philadelphia, Pennsylvania, USA.

IMA status : Approved Species 1963 ()
CLASSIFICATION 
Dana
(8th edition) :
78.05.02.01  
  (78) Unclassified silicates
  (78.05) possible phyllosilicates
  (78.05.02)
  
Nickel-Strunz
(10th edition) :
09.EE.05
  (09) Silicates
  (09.E) Phyllosilicates
  (09.EE) Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  

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