Bykovaite Mineral Data

General Bykovaite Information
Chemical Formula:	BaNa{(Na,Ti)4[(Ti,Nb)2(OH,O)3Si4O14](OH,F)2}•3H2O
Composition:	Molecular Weight = 824.26 gm
	Potassium 0.57 % K 0.69 % K₂O
	Barium 11.83 % Ba 13.21 % BaO
	Sodium 9.87 % Na 13.31 % Na₂O
	Strontium 0.53 % Sr 0.63 % SrO
	Calcium 0.15 % Ca 0.20 % CaO
	Titanium 11.33 % Ti 18.90 % TiO₂
	Manganese 1.73 % Mn 2.24 % MnO
	Niobium 7.44 % Nb 10.64 % Nb₂O₅
	Aluminum 0.07 % Al 0.12 % Al₂O₃
	Iron 0.20 % Fe 0.26 % FeO
	Silicon 13.56 % Si 29.01 % SiO₂
	Hydrogen 1.12 % H 9.98 % H₂O
	Oxygen 40.20 % O
	Fluorine 1.41 % F 1.41 % F
	- % F -0.59 % -O=F₂
	______ ______
	100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:	Na_0.47K_0.12Sr_0.05Na_3.07Ti_0.61Mn²⁺_0.26Ca_0.03Fe²⁺_0.03Ti_1.34Nb_0.66Si_3.98Al_0.02O₁₄(OH)_3.13 F_0.61O_0.58�3(H₂O)
Environment:	Pegmatite vein consisting of a central ussingitic core surrounded by a zone of mostly microcline and aegirine at the margins, and lies in poikilitic nepheline-sodalite syenite. Hete rophyllosilicate pseudomorphous after
IMA Status:	Approved IMA 2003 (Dana # Added)
Locality:	Alluaiv, Lovozero Massif, Kola, Russia Link to MinDat.org Location Data.
Name Origin:	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.
Synonym:	IMA2003-044