Mineral Species containing Dysprosium (Dy)

Element Properties, Isotopic Compositions for Dysprosium

**Dysprosium (Dy) Element Properties**
Atomic Mass	162.5
Atomic Number	66
Name Origins	Greek, dysprositos = "hard to obtain."
Year Discovered	1886
Discovery Credits	Discovered by Paul-Emile Lecoq de Boisbaudran at Paris, France.
Remarks	Reactive, hard, silvery metal of the rare earth group. Oxidized by oxygen, reacts rapidly with water, dissolves in acids. Used in alloys for making magnets. Diagnostic tests: There are no simple diagnostic tests to identify dysprosium. X-ray fluorescence spectroscopy is commonly employed to identify and analyze members of the Rare-Earth group elements.
References	Emsley, J., 1991; THE ELEMENTS : Sec. Ed., Clarendon Press, Oxford, 251 p.
See Also	WebElements, ChemiCool

**Naturally Occurring Isotopes**
Symbol	Isotope Mass	Isotope Nuclide Number	Isotope Number	Natural Abundance	Half-life Units
Dy	155.925277	156	66	0.0600%	Stable
Dy	157.924403	158	66	0.1000%	Stable
Dy	159.925193	160	66	2.3400%	Stable
Dy	160.92693	161	66	18.9000%	Stable
Dy	161.926795	162	66	25.5000%	Stable
Dy	162.928728	163	66	24.9000%	Stable
Dy	163.929171	164	66	28.2000%	Stable

Dysprosium (Dy) Minerals sorted by Descending Weight Percent

Click here for List sorted by Mineral Name

**24 Minerals containing Dysprosium (Dy) sorted by Descending Weight Percent**
% Dy	Mineral Name	Chemical Formula	MW
17.17 % Dy	Churchite-(Dy) *	(Dy,Sm,Gd,Nd)(PO4)·2(H2O)	283.93
9.00 % Dy	Agardite-(Dy) !	(Dy,La,Ca)Cu6(AsO4)3(OH)6·3(H2O)	1,083.41
6.47 % Dy	Yftisite-(Y) ?	(Y,Dy,Er)4(Ti,Sn)O(SiO4)2(F,OH)6	753.13
4.72 % Dy	Adamsite-(Y) !	NaY(CO3)2·6(H2O)	344.24
3.18 % Dy	Decrespignyite-(Y) !	(Y,REE)4Cu(CO3)4Cl(OH)5·2(H2O)	867.49
2.81 % Dy	Samarskite-(Yb) !	(Yb,Y,REE,U,Th,Ca,Fe++) (Nb,Ta,Ti)O4	312.29
2.44 % Dy	Moskvinite-(Y) !	Na2K(Y,REE) [Si6O15]	598.41
2.44 % Dy	Micheelsenite !	(Ca,Y)3Al[PO3OH,CO3](CO3)(OH)6·12(H2O)	667.02
2.25 % Dy	Hingganite-(Y)	Y2([ ])Be2Si2O8(OH)2	433.65
2.08 % Dy	Iwashiroite-(Y) !	YTaO4	313.16
1.98 % Dy	Pyatenkoite-(Y) !	Na5(Y,Dy,Gd)TiSi6O18·6(H2O)	821.63
1.54 % Dy	Mineevite-(Y)	Na25Ba(Y,Gd,Dy)2(HCO3)4(CO3)11(SO4)2ClF2	2,115.35
0.95 % Dy	Lepersonnite-(Gd)	CaGd2(UO3)24(CO3)8(SiO4)4O4·60(H2O)	8,909.01
0.65 % Dy	Yakovenchukite-(Y) !	K3NaCaY2(Si12O30)·4H2O	1,256.79
0.46 % Dy	Fluorcalciobritholite !	(Ca,REE)5[(Si,P)O4]3F	710.23
0.38 % Dy	Chukhrovite-(Nd) !	Ca3(Nd,Y)Al2(SO4)F13·12(H2O)	857.24
0.38 % Dy	Aluminocerite-(Ce) !	(Ce,REE,Ca)9(Al,Fe+++)(SiO4)3[SiO3(OH)]4(OH)3	1,725.28
0.37 % Dy	Percleveite-(Ce) !	(Ce,La,Nd)2Si2O7	442.72
0.36 % Dy	Calciopetersite !	CaCu6[(PO4)2(PO3OH)(OH)6]·3(H2O)	907.06
0.18 % Dy	Arapovite !	(U,Th)(Ca,Na)2(K1-x[ ]x)Si8O20·H2O, x=0.5	897.66
0.15 % Dy	Agardite-(Ce) !	(Ce,Ca)Cu6(AsO4)3(OH)6·3(H2O)	1,070.95
0.15 % Dy	Plumboagardite !	(Pb,REE,Ca)Cu6(AsO4)3(OH)6·3(H2O)	1,097.39
0.14 % Dy	Johnsenite-(Ce) !	Na12(Ce,REE,Sr)3Ca6Mn3Zr3W(Si25O73)(CO3)(OH,Cl)2	3,374.09
0.04 % Dy	Hingganite-(Ce)	(Ce,Ca)2([ ],Fe)Be2Si2O8[(OH),O]2	460.63

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