Mineral Information and Data:

Telyushenkoite
CsNa6Be2Al3Si15O39F2 [CNMNC approved formula]

Named for Tamara Matveyevna Telyushenko (1930–1997), a petrographer who made major contributions to knowledge of the geology of Central Asia and who headed the Young Geologists’ School of Ashkhabad for over thirty years.

IMA status : Approved Species 2003 ()
CLASSIFICATION 
Dana
(8th edition) :
78.07.10.02  (This Dana# Added)
  (78) Unclassified silicates
  (78.07) wholly unclassified silicates
  (78.07.10)
  
Nickel-Strunz
(10th edition) :
09.EH.25
  (09) Silicates
  (09.E) Phyllosilicates
  (09.EH) Transitional structures between phyllosilicate and other silicate units
  
Crystal system: Trigonal System
Point group (H-M): 3m (or 3 2/m) — hexagonal-scalenohedral
  
  
  

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