Mineral Species sorted by the element Pr Praeseodymium

Praeseodymium (Pr ) by %

**Praeseodymium (Pr) Element Properties**
Atomic Mass	140.90765
Atomic Number	59
Name Origins	Greek, prasios didymos = "green twin"
Year Discovered	1885
Discovery Credits	Separated by Baron Auer von Welsbach at Vienna, Austria.
Remarks	Soft, malleable, silvery metal of the lanthanide group. Reacts slowly with oxygen, rapidly with water. Used in alloys for permanent magnets, flints, yellow glass for eye protection for welders, etc. Diagnostic tests: There are no simple diagnostic tests to identify praeseodymium. 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	Half-life Units	Decay Mode	Decay Mode MeV	Decay Mode %
Pr	140.907648	141	59	100.0000%		Stable

Mineral Species sorted by the element Pr (Praeseodymium )

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%Pr	Mineral Name	Chemical Formula	MW
6.89%Pr	Paratooite-(La) !	REE3(Ca,Sr)2NaCu(CO3)8	2,146.77
6.87%Pr	Kozoite-(Nd) !	(Nd,La,Sm,Pr)(CO3)(OH)	205.20
6.11%Pr	Wakefieldite-(La) !	LaVO4	253.60
4.94%Pr	Fergusonite-beta-(Nd)	(Nd,Ce)NbO4	285.36
4.88%Pr	Fergusonite-beta-(Ce)	(Ce,La,Nd)NbO4	288.78
3.69%Pr	Kozoite-(La) !	La(CO3)(OH)	190.98
3.11%Pr	Fluorbritholite-(Ce)	(Ca,Ce,La,Na)5(SiO4,PO4)3(OH,F)	769.69
3.10%Pr	Aluminocerite-(Ce) !	(Ce,REE,Ca)9(Al,Fe+++)(SiO4)3[SiO3(OH)]4(OH)3	1,725.28
2.96%Pr	Astrocyanite-(Ce)	Cu2(Ce,Nd,La)2(UO2)(CO3)5(OH)2•1.5(H2O)	951.38
2.93%Pr	Galgenbergite-(Ce) !	Ca(REE)2(CO3)4•(H2O)	577.84
2.86%Pr	Percleveite-(Ce) !	(Ce,La,Nd)2Si2O7	442.72
2.68%Pr	Allanite-(La) !	Ca(REE,Ca)Al2(Fe++,Fe+++)(SiO4)(Si2O7)O(OH)	557.74
2.30%Pr	Biraite-(Ce) !	Ce2Fe++(CO3)(Si2O7)	551.07
2.24%Pr	Polyakovite-(Ce) !	(Ce,La,Nd,Pr,Ca)4(Mg,Fe++)(Cr,Fe+++)2(Ti,Nb)2Si4O22	1,255.42
2.15%Pr	Ilimaussite-(Ce)	(Ba,Na)10K3Na4.5Ce5(Nb,Ti)6[Si12O36][Si9O18(O,OH)24]O6	4,253.30
2.11%Pr	Zugshunstite-(Ce) !	(Ce,Nd,La)Al(SO4)2(C2O4)•8(H2O)	667.51
2.10%Pr	Petersenite-(Ce)	(Na,Ca)4(Ce,La,Nd)2(CO3)5	672.29
1.86%Pr	Tundrite-(Ce)	Na2Ce2TiO2(SiO4)(CO3)2	614.89
1.84%Pr	Hingganite-(Ce)	(Ce,Ca)2([ ],Fe)Be2Si2O8[(OH),O]2	460.63
1.80%Pr	Vastmanlandite-(Ce) !	(Ce,La)3CaAl2Mg2[Si2O7][SiO4]3F(OH)2	1,094.51
1.69%Pr	Uedaite-(Ce) !	Mn++CeAl2Fe++(Si2O7)(SiO4)O(OH)	584.87
1.61%Pr	Haleniusite-(La) !	(La,Ce)OF	174.90
1.59%Pr	Fluorcalciobritholite !	(Ca,REE)5[(Si,P)O4]3F	710.23
1.48%Pr	Qaqarssukite-(Ce) !	Ba(Ce,REE)(CO3)2F	379.62
1.48%Pr	Proshchenkoite-(Y) !	(Y,REE,Ca,Na,Mn)15Fe++Ca(P,Si)Si6B3(O,F)48	2,711.51
1.36%Pr	Zajacite-(Ce)	Na(REExCa1-x)(REEyCa1-y)F6where(xney)	295.08
1.32%Pr	Gatelite-(Ce) !	(Ca,Ce,La,Nd)4(Al,Mg,Fe)4[Si2O7][SiO4]3(O,F,OH)3	1,067.70
1.30%Pr	Maoniupingite-(Ce) !	(REE,Ca)4(Fe+++,Ti,Fe++,[])(Ti,Fe+++,Fe++,Nb)4Si4O22	1,228.90
1.22%Pr	Calcybeborosilite-(Y) !	(REE,Ca)2[](B,Be)2(SiO4)2(OH,O)2	437.09
1.15%Pr	Chukhrovite-(Nd) !	Ca3(Nd,Y)Al2(SO4)F13•12(H2O)	857.24
1.13%Pr	Calciogadolinite ?	CaREE(Fe+++)Be2Si2O10	474.11
1.09%Pr	Kentbrooksite !	(Na,REE)15(Ca,REE)6Mn++Zr3NbSi25O74F2•2(H2O)	3,900.86
1.09%Pr	Abenakiite-(Ce)	Na26REE6(SiO3)6(PO4)6(CO3)6(S++++O2)O	2,928.18
1.09%Pr	Bussyite-(Ce) !	(Ce,REE)3(Na,H2O)6MnSi9Be5(O,OH)30F4	1,329.21
1.06%Pr	Hundholmenite-(Y) !	(Y,REE,Ca,Na)15(Al,Fe+++)CaxAs+++1-x(Si,As+++++)Si6B3(O,F)48	2,521.06
1.00%Pr	Johnsenite-(Ce) !	Na12(Ce,REE,Sr)3Ca6Mn3Zr3W(Si25O73)(CO3)(OH,Cl)2	3,374.09
0.99%Pr	Thomasclarkite-(Y) !	(Na,Ce)(Y,REE)(HCO3)(OH)3•4(H2O)	375.77
0.99%Pr	Orthojoaquinite-(La) !	Ba2Na(La,Ce)2Fe++Ti2Si8O26(OH,O,F)•H2O	1,429.39
0.88%Pr	Ferronordite-(La) !	Na3Sr(La,Ce)FeSi6O17	800.84
0.80%Pr	Calcioburbankite	Na3(Ca,REE,Sr)3(CO3)5	597.04
0.70%Pr	Kukharenkoite-(La) !	Ba2(La,Ce)(CO3)3F	605.99
0.63%Pr	IMA2008-024 !	(Ca,Na,REE,[])7(Nb,Ti)[Si2O7]2OF3	841.27
0.62%Pr	Diversilite-(Ce) !	Na2(Ba,K)6Ce2Fe++Ti3Si12O36(OH)3(OH,H2O)9	2,272.68
0.61%Pr	Khristovite-(Ce)	(Ca,REE)(Ce,REE)(Mg,Fe,Cr,Ti,V,Al)Mn++Al(SiO4)(Si2O7)(OH)(F,O)	610.88
0.58%Pr	IMA2009-001	Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O22[(OH),F]43(H2O)1.5	4,586.47
0.58%Pr	Dissakisite-(Ce)	Ca(Ce,REE)(Mg,Fe++)(Al,Fe+++)2Si3O12(OH)	599.36
0.56%Pr	Piergorite-(Ce) !	Ca8Ce2(Al0.5 Fe+++0.5)([ ],Li,Be)2Si6B8O36(OH,F)2	1,498.89
0.56%Pr	Trimounsite-(Y)	(Y,REE)2Ti2SiO9	475.18
0.54%Pr	Cerite-(La) !	(La,Ce,Ca)9(Mg,Fe+++)(SiO4)6[SiO3(OH)](OH)3	1,825.93
0.52%Pr	Hellandite-(Y)	(Ca,REE)4(Y,Ce)2(Al,[])2[Si4B4O22](OH)2	1,029.47
0.49%Pr	Kamphaugite-(Y)	(Ca1.84REEx)(Y1.46REE0.54-x)(CO3)4(OH)1.65•2(H2O)	585.44
0.49%Pr	Nioboaeschynite-(Y) !	[(Y,REE),Ca,Th,Fe](Nb,Ti,Ta)2(O,OH)6	368.70
0.49%Pr	Dissakisite-(La) !	(Ca,Fe++,Th,La)(La,REE,Ca)(Al,Cr,Ti)2(Mg,Fe,Al)Si3O12(OH,F)withLa>Ce	551.33
0.48%Pr	Hellandite-(Ce) !	(Ca3REE)4Ce2Al[]2[Si4B4O22](OH)2	1,114.02
0.47%Pr	Strontiochevkinite	(Sr,REE)4Fe(Ti,Zr)2Ti2Si4O22	1,140.23
0.46%Pr	Gerenite-(Y) !	(Ca,Na)2(Y,REE)3Si6O18•2(H2O)	872.18
0.43%Pr	Sazhinite-(La) !	Na3La[Si6O15]•2(H2O)	652.93
0.38%Pr	IMA2009-005	(Y,Ca,REE)5[(Si,P)O4]3F	696.25
0.38%Pr	Ciprianiite !	Ca4[(Th,U)(REE)]2(Al,[])2[Si4B4O22](OH,F)2	1,032.51
0.32%Pr	Hingganite-(Y)	Y2([ ])Be2Si2O8(OH)2	433.65
0.23%Pr	Kuliokite-(Y)	(Y,REE)4Al(SiO4)2(OH)2F5	706.82
0.23%Pr	Carbokentbrooksite !	(Na,[ ])12(Na,Ce)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3)•H2O	3,121.55
0.20%Pr	Cerotungstite-(Ce)	(Ce,REE)W2O6(OH)3	655.80
0.16%Pr	Decrespignyite-(Y) !	(Y,REE)4Cu(CO3)4Cl(OH)5•2(H2O)	867.49
0.16%Pr	Calciopetersite !	CaCu6[(PO4)2(PO3OH)(OH)6]•3(H2O)	907.06
0.15%Pr	Bijvoetite-(Y)	(Y,REE)8(H2O)25(UO2)16O8(OH)8(CO3)16•14(H2O)	7,068.68
0.13%Pr	Plumboagardite !	(Pb,REE,Ca)Cu6(AsO4)3(OH)6•3(H2O)	1,097.39
0.12%Pr	Mckelveyite-(Nd) *	(Ba,Sr)(Ca,Na,Nd,REE)(CO3)2•3-10(H2O)	456.93
0.10%Pr	Miserite	K1.5-x(Ca,Y,REE)5[Si6O15][Si2O7](OH,F)2•yH2O	933.24
0.10%Pr	Georgbarsanovite !	Na12(Mn,Sr,REE)3Ca6Fe++3Zr3NbSi25O76Cl2•H2O	3,297.19
0.08%Pr	Kapitsaite-(Y) !	(Ba,K,Pb,Na)4(Y,Ca,REE)2[Si8B2(B,Si)2O28F]	1,419.80
0.07%Pr	Mckelveyite-(Y)	NaCa(Ba,Sr)3(Y,REE)(CO3)6•3(H2O)	971.59
0.05%Pr	Samarskite-(Yb) !	(Yb,Y,REE,U,Th,Ca,Fe++)(Nb,Ta,Ti)O4	312.29

(* - Mineral Name Is Not IMA Approved)
(! - New Dana classification added or changed from Danas New Mineralogy)
(? - IMA Discredited Mineral Species Name)

There are 73 minerals with Pr in the Mineralogy Database.

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Mineral Species containing Praeseodymium (Pr )

Praeseodymium (Pr ) by %

Mineral Species sorted by the element Pr (Praeseodymium )