Sazhinite-(La) Mineral Data

General Sazhinite-(La) Information
Chemical Formula:	Na3La[Si6O15]•2(H2O)
Composition:	Molecular Weight = 652.93 gm
	Potassium 0.12 % K 0.14 % K₂O
	Sodium 10.11 % Na 13.62 % Na₂O
	Strontium 0.13 % Sr 0.16 % SrO
	Lithium 0.01 % Li 0.02 % Li₂O
	Calcium 0.49 % Ca 0.69 % CaO
	Lanthanum 8.72 % La 10.23 % La₂O₃
	Cerium 7.51 % Ce 8.80 % Ce₂O₃
	Praeseodymium 0.43 % Pr 0.51 % Pr₂O₃
	Yttrium 0.14 % Y 0.17 % Y₂O₃
	Thorium 3.20 % Th 3.64 % ThO₂
	Zirconium 0.14 % Zr 0.19 % ZrO₂
	Uranium 0.36 % U 0.41 % UO₂
	Silicon 25.25 % Si 54.02 % SiO₂
	Boron 0.02 % B 0.05 % B₂O₃
	Hydrogen 0.62 % H 5.52 % H₂O
	Sulfur 0.29 % S 0.74 % SO₃
	Neodymium 0.88 % Nd 1.03 % Nd₂O₃
	Oxygen 41.17 % O
	Fluorine 0.41 % F 0.41 % F
	- % F -0.17 % -O=F₂
	______ ______
	100.00 % 100.17 % = TOTAL OXIDE
Empirical Formula:	Na_2.87K_0.02Sr_0.01La_0.41Ce_0.35Pr_0.02Nd_0.04Th_0.09U_0.01Y_0.01Zr_0.01Ca_0.08Li_0.01Si_5.87S_0.06 B_0.01O_14.8F_0.14�2(H₂O)
Environment:	Occurs in vesicles within the phonolite, together with other species crystallized from late-stage hydrothermal fluids. La-dominant analogue of sazhinite.
IMA Status:	Approved IMA 2004 (Dana # Added)
Locality:	Aris phonolite intrusion, Windhoek, Namibia. Link to MinDat.org Location Data.
Name Origin:	Named as the La-dominant analogue of sazhinite.
Name Pronunciation:	Sazhinite-(La) + Pronunciation
Synonym:	IMA2002-042a