REE Standard Block

Hold your mouse over the block to see composition information for each standard.

Compositions of standard reference materials in Petrology block.

(download an Excel version of this table)

Smithsonian Standard Block
	SiO2	Al2O3	TiO2	Fe2O3	FeO	MnO	MgO	CaO	Na2O	K2O	H2O	CO2	CeO2	SO3	P2O5	Cl	F	Sr	MgCO3	CaCO3	FeCO3	MnCO3	Total
Kakanui Anorthoclase	66.44	20.12			0.20			0.87	9.31	2.35													99.29
Durango Apatite	0.34	0.07		0.06			0.01	54.02	0.23	0.01	0.01			0.37	40.78	0.41	3.53						99.84
Beeson Apatite	0.11			0.04				54.31					0.29	0.59	40.93		3.67	0.20					100.14
Basaltic Glass	50.94	12.49	4.06	1.87	11.62	0.15	5.08	9.30	2.66	0.82					0.38								99.37
Tektite Glass	75.75	11.34	0.50	0.64	4.32	0.11	1.51	2.66	1.06	1.88	0.10					0.13							100.00
Dolomite																			45.81	54.19			100.00
Calcite								56.10				44.01											99.91
Siderite																					95.13	4.87	100.00
Strontianite								1.90				30.23						SrO: 67.67					99.80

 

REE Standard Block
Element	Chemical Formula	wt% REE	wt% P	wt% O	wt% PO4
Scandium	ScPO4	32.13% Sc	22.13	45.74	67.87
Yttrium	YPO4	48.35% Y	16.84	34.81	51.65
Lanthanum	LaPO4	59.39% La	13.24	27.36	40.61
Cerium	CePO4	59.60% Ce	13.17	27.22	40.40
Praseodymium	PrPO4	59.74% Pr	13.13	27.13	40.26
Neodymium	NdPO4	60.30% Nd	12.95	26.75	39.70
Samarium	SmPO4	61.29% Sm	12.62	26.09	38.71
Europium	EuPO4	61.54% Eu	12.54	25.92	38.46
Gadolinium	GdPO4	62.35% Ga	12.28	25.37	37.65
Terbium	TbPO4	62.60% Tb	12.20	25.21	37.40
Dysprosium	DyPO4	63.11% Dy	12.03	24.86	36.89
Holmium	HoPO4	63.46% Ho	11.92	24.62	36.54
Erbium	ErPO4	63.78% Er	11.81	24.41	36.22
Thulium	TmPO4	64.01% Tm	11.74	24.25	35.99
Ytterbium	YbPO4	64.56% Yb	11.56	23.88	35.44
Lutecium	LuPO4	64.82% Lu	11.47	23.71	35.18

By Nelia W. Dunbar