Mineral Information and Data:

Effenbergerite
BaCuSi4O10 [CNMNC approved formula]

Named after Dr. Herta S. Effenberger, mineralogist and crystallographer of the University of Vienna.

IMA status : Approved Species 1994 ()
CLASSIFICATION 
Dana
(8th edition) :
71.02.03.03  
  (71) Phyllosilicate Sheets of Six-Membered Rings
  (71.02) with 2:1 Layers
  (71.02.03) Cuprorivaite group
  
Nickel-Strunz
(10th edition) :
09.EA.05
  (09) Silicates
  (09.E) Phyllosilicates
  (09.EA) Single nets of tetrahedra with 4-, 5-, (6-), and 8-membered rings
  
Crystal system: Tetragonal System
Point group (H-M): 4/mmm (or 4/m 2/m 2/m) — ditetragonal-dipyramidal
  
  
  

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