Bussyite-(Ce) Mineral Data

General Bussyite-(Ce) Information
Chemical Formula:	(Ce,REE)3(Na,H2O)6MnSi9Be5(O,OH)30F4
Composition:	Molecular Weight = 1,329.21 gm
	Potassium 0.04 % K 0.05 % K₂O
	Sodium 5.88 % Na 7.93 % Na₂O
	Calcium 3.98 % Ca 5.56 % CaO
	Europium 0.09 % Eu 0.11 % Eu₂O₃
	Lanthanum 2.35 % La 2.76 % La₂O₃
	Cerium 8.68 % Ce 10.16 % Ce₂O₃
	Praeseodymium 1.09 % Pr 1.28 % Pr₂O₃
	Samarium 0.89 % Sm 1.04 % Sm₂O₃
	Gadolinium 0.92 % Gd 1.06 % Gd₂O₃
	Yttrium 1.62 % Y 2.06 % Y₂O₃
	Thorium 3.02 % Th 3.44 % ThO₂
	Magnesium 0.02 % Mg 0.04 % MgO
	Manganese 2.00 % Mn 2.59 % MnO
	Beryllium 3.12 % Be 8.67 % BeO
	Aluminum 0.45 % Al 0.85 % Al₂O₃
	Silicon 18.80 % Si 40.22 % SiO₂
	Hydrogen 0.25 % H 2.26 % H₂O
	Neodymium 4.05 % Nd 4.72 % Nd₂O₃
	Oxygen 38.91 % O
	Fluorine 3.82 % F 3.82 % F
	- % F -1.61 % -O=F₂
	______ ______
	100.00 % 96.99 % = TOTAL OXIDE
Empirical Formula:	Ce_0.82Nd_0.37Y_0.24Th_0.17Pr_0.1Sm_0.07Gd_0.07Eu_0.008Ca_0.77La_0.22Na₃�(H₂O)Ca_0.54K_0.01 Mn²⁺_0.48Na_0.4Mg_0.01Si_8.89Be_4.6Al_0.22(OH)_1.33
Environment:	Found in a serandite-bearing pocket, approximately 15 x 30 cm across, in a pegmatite hosted by nepheline syenite with albite phenocrysts. Strongly resembles that of semenovite-(Ce) and the closely related mineral harsti
IMA Status:	Approved IMA 2007 (Dana # Added)
Locality:	Poudrette quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada. Link to MinDat.org Location Data.
Name Origin:	Named for Antoine Alexandre Brutus Bussy (1794-1882), French chemist who is co-credited in isolating the element beryllium in August 1828.
Synonym:	IMA2007-039

General Bussyite-(Ce) Information