Telyushenkoite Mineral Data

General Telyushenkoite Information
Chemical Formula:	CsNa6[Be2(Si,Al)18O39F2]
Composition:	Molecular Weight = 1,433.11 gm
	Cesium 6.40 % Cs 6.78 % Cs₂O
	Potassium 0.38 % K 0.46 % K₂O
	Rubidium 0.06 % Rb 0.07 % Rb₂O
	Sodium 10.11 % Na 13.62 % Na₂O
	Beryllium 1.28 % Be 3.56 % BeO
	Aluminum 3.88 % Al 7.33 % Al₂O₃
	Zinc 1.37 % Zn 1.70 % ZnO
	Silicon 30.30 % Si 64.82 % SiO₂
	Oxygen 43.36 % O
	Fluorine 2.86 % F 2.86 % F
	- % F -1.21 % -O=F₂
	______ ______
	100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:	Cs_0.69Na_0.3K_0.14Rb_0.01Na₆Be_2.04Si_15.46Al_2.06Zn_0.3O_38.84F_2.16
Environment:	In reedmergnerite boulders on the moraine of the Dara-i-Pioz glacier. (related to leifite; structure)
IMA Status:	Approved IMA 2003 (Dana # Added)
Locality:	Moraine of the Darai-Pioz glacier in northern Tajikistan. Link to MinDat.org Location Data.
Name Origin:	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� Sch ool of Ashkhabad for over thirty years
Synonym:	IMA2001-012