Mineral Information and Data:

Virgilite
LiAlSi2O6 [CNMNC approved formula]

Named for Virgil Everett Barnes (1903-), University of Texas, Austin, Texas, USA, prominent worker on tektites, impactites, and other natural glasses.

IMA status : Approved Species 1978 ()
CLASSIFICATION 
Dana
(8th edition) :
75.03.01.01  
  (75) Tectosilicate Si Tetrahedral Frameworks
  (75.03) with silica derivative structures
  (75.03.01)
  
Nickel-Strunz
(10th edition) :
09.FA.15
  (09) Silicates
  (09.F) Tektosilicates without Zeolitic H2O
  (09.FA) Tektosilicates without additional non-tetrahedral anions
  
Crystal system: Hexagonal System
Point group (H-M): 622 — trapezoidal
  
  
  

<<< BACK TO MINERAL SEARCH