Faizievite Mineral Data

General Faizievite Information
Chemical Formula:	K2Na(Ca6Na)Ti4Li6Si24O66F2
Composition:	Molecular Weight = 2,384.24 gm
	Potassium 3.23 % K 3.89 % K₂O
	Rubidium 0.11 % Rb 0.12 % Rb₂O
	Barium 0.23 % Ba 0.26 % BaO
	Sodium 1.48 % Na 1.99 % Na₂O
	Strontium 0.62 % Sr 0.74 % SrO
	Lithium 1.75 % Li 3.76 % Li₂O
	Calcium 10.35 % Ca 14.49 % CaO
	Titanium 8.03 % Ti 13.40 % TiO₂
	Niobium 0.08 % Nb 0.11 % Nb₂O₅
	Silicon 28.28 % Si 60.51 % SiO₂
	Oxygen 44.54 % O
	Fluorine 1.30 % F 1.30 % F
	- % F -0.55 % -O=F₂
	______ ______
	100.00 % 100.01 % = TOTAL OXIDE
Empirical Formula:	K_1.97Ba_0.04Rb_0.03Li₆Na_0.86Ca_6.16Na_0.67Sr_0.17Ti₄Nb_0.02Si_24.01O₆₆F_1.63O_0.37
Environment:	Found in a quartz-pectolite boulder in moraine. Related to beryl-group and milarite-group minerals. Faizievite structure can be considered as alternating baratovite and berezanskite blocks alternating along [001].
IMA Status:	Approved IMA 2006 (Dana # Added)
Locality:	Dar-i-Pioz glacier, Alai mountain range, northern Tajikistan. Link to MinDat.org Location Data.
Name Origin:	Named for Faiziev Abdulkhak Radzhabovitrh (b 1938), professor of the Academy of Sciences of the Republic of Tadjikistan, Dushanbe, Tadjikistan.
Synonym:	IMA2006-037