Mineral Information and Data:

Bykovaite
(Ba,Na,K)2(Na,Ti,Mn)4(Ti,Nb)2O2Si4O14(H2O,F,OH)2 • 3.5H2O [CNMNC approved formula]

Named to honor analytical chemist Alexandra Vasilyevna Bykova (1917-2001), who first discovered that bornemanite could be transformed to a synthetic form of bykovaite upon treatment with water.

IMA status : Approved Species 2003 ()
CLASSIFICATION 
Dana
(8th edition) :
56.04.02.02  (This Dana# Added)
  (56) Sorosilicate Si2O7 Groups and O, OH, F. and H2O
  (56.04) with [Si2O7] with phosphate, water
  (56.04.02) Bornemanite Group
  
Nickel-Strunz
(10th edition) :
09.BE.50
  (09) Silicates
  (09.B) Sorosilicates (dimer) structures
  (09.BE) Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination
  
Crystal system: Monoclinic System
Point group (H-M): 2 — sphenoidal
  
  
  

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