Mineral Information and Data:

Davreuxite
Mn2+Al6Si4O17(OH)2 [CNMNC approved formula]

Named for Charles Joseph Davreux (1800-1863), Belgian pharmacist and natural scientist, Professor of Mineralogy at the University of LiĀµege, Belgium.

IMA status : Valid species (Pre-IMA 1878) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
58.01.02.01  
  (58) Sorosilicate Insular, Mixed, Single, and Larger Tetrahedral Groups
  (58.01) with cations in [4] and higher coordination; single and double groups (n=1,2)
  (58.01.02)
  
Nickel-Strunz
(10th edition) :
09.BF.15
  (09) Silicates
  (09.B) Sorosilicates (dimer) structures
  (09.BF) Sorosilicates with mixed SiO4 and Si2O7 groups; cations in tetrahedral [4] and greater coordination
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  

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