Mineral Species containing Uranium (U)

Element Properties, Isotopic Compositions for Uranium

**Uranium (U) Element Properties**
Atomic Mass	238.0289
Atomic Number	92
Name Origins	Named after the planet Uranus.
Year Discovered	1789
Discovery Credits	Discovered by M. H. Klaproth at Berlin, German; isolated in 1841 by E. M. Pleigot at Paris, France
Remarks	Radioactive silvery metal. malleable, ductile, and tarnishes in air. Attacked by steam and acids but not by alkalis. Used as nuclear fuel and in nuclear weapons. Diagnostic tests: Uranium is usually detected by radioactivity (due, in part, to the daughter elements such as radium). Thorium is also naturally radioactive; however, many uranium minerals are generally yellow or green and fluorescent. With a borax bead test in the oxidizing flame, the bead is yellow to brownish red color while hot and is colorless to yellow when cold. This test is very similar to iron. The Na₂(NH₄)(PO₄) bead test for uranium is a much better test, under oxidizing conditions the bead is clear yellow (hot) yielding slightly greenish yellow on cooling. In the reducing flame, it becomes a fine green color when hot or cold.
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 %
U	234.040946	234	92	0.0050%	245,000	Years	alpha	4.856	100.00%
U	235.043924	235	92	0.7200%	7x10⁸	Years	alpha	4.6793	100.00%
U	236.045562	236	92	0.0000%	2x10⁷	Years	alpha	4.569	100.00%
U	238.050784	238	92	99.2750%	4x10⁹	Years	alpha	4.039	100.00%

Uranium (U) Minerals sorted by Descending Weight Percent

Click here for List sorted by Mineral Name

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**250 Minerals containing Uranium (U) sorted by Descending Weight Percent**
% U	Mineral Name	Chemical Formula	MW
88.15 % U	Uraninite #	UO2	270.03
78.29 % U	IMA2008-022	UO2(OH)2	304.04
78.29 % U	Ianthinite #	(UO2)·5(UO3)·10(H2O)	304.04
76.04 % U	Metaschoepite	UO3·n(H2O)(n<2)	313.05
73.91 % U	Paraschoepite #	UO3·2(H2O) (?)	322.06
72.89 % U	Schoepite #	(UO2)8O2(OH)12·12(H2O)	2,612.49
72.63 % U	Coffinite #	U(SiO4)1-x(OH)4x	327.71
72.48 % U	Becquerelite #	Ca(UO2)6O4(OH)6·8(H2O)	1,970.41
72.26 % U	Metauranopilite #	(UO2)6(SO4)(OH)10·5(H2O)	1,976.38
72.12 % U	Rutherfordine #	UO2(CO3)	330.04
71.48 % U	Agrinierite	(K2,Ca,Sr)U3O10·4(H2O)	998.94
71.25 % U	Soddyite #	(UO2)2SiO4·2(H2O)	668.17
71.11 % U	Compreignacite	K2(UO2)6O4(OH)6·8(H2O)	2,008.53
70.41 % U	Metastudtite	UO4·2(H2O)	338.06
70.40 % U	Rameauite	K2CaU++++++6O20·9(H2O)	2,028.57
69.79 % U	Jachymovite !	(UO2)8(SO4)(OH)14·13(H2O)	2,728.59
69.58 % U	Metacalciouranoite	(Ca,Na,Ba)U2O7·2(H2O)	718.40
69.58 % U	IMA2009-032	CaUO4	342.10
69.27 % U	Metavandendriesscheite	PbU7O22·n(H2O)(n<12)	2,405.54
69.19 % U	Metavanmeersscheite	U++++++(UO2)3(PO4)2(OH)6·2(H2O)	1,376.13
69.07 % U	Billietite #	Ba(UO2)6O4(OH)6·8(H2O)	2,067.66
68.80 % U	Nielsbohrite !	K(UO2)3(AsO4)(OH)4·H2O	1,093.26
68.39 % U	Blatonite !	UO2CO3·(H2O)	348.05
68.38 % U	Natroboltwoodite	(H3O)(Na,K)(UO2)SiO4·(H2O)	696.19
67.93 % U	Uranopilite #	[(UO2)6(SO4)O2(OH)6(H2O)6]·8(H2O)	2,102.49
67.77 % U	Wyartite #	Ca3U++++(UO2)6(CO3)2(OH)18·3-5(H2O)	2,458.63
67.76 % U	Vandendriesscheite #	Pb(UO2)10O6(OH)11·11(H2O)	3,513.04
67.42 % U	Vanmeersscheite	U++++++(UO2)3(PO4)2(OH)6·4(H2O)	1,412.16
67.42 % U	Oswaldpeetersite !	(UO2)2CO3(OH)2·4(H2O)	706.14
67.40 % U	Coutinhoite !	ThxBa1-2x(H2O)y(UO2)2Si5O13·H2O	2,118.94
67.21 % U	Clarkeite #	(Na,Ca,Pb)(UO2)O(OH)·0-1(H2O)	318.75
66.97 % U	Urancalcarite	Ca(UO2)3(CO3)(OH)6·3(H2O)	1,066.26
66.85 % U	Sharpite #	Ca(UO2)6(CO3)5(OH)4·6(H2O)	2,136.41
66.15 % U	Richetite #	PbU++++++4O13·4(H2O)	1,439.37
65.91 % U	Protasite	Ba(UO2)3O3(OH)2·3(H2O)	1,083.47
65.02 % U	Joliotite	(UO2)(CO3)·n(H2O), (n=2?)	366.07
64.68 % U	Lermontovite #	U++++(PO4)(OH)·(H2O) (?)	368.02
64.53 % U	Fourmarierite #	Pb(UO2)4O3(OH)4·4(H2O)	1,475.40
64.32 % U	Fontanite	Ca[(UO2)3(CO3)2O2]·6(H2O)	1,110.27
63.99 % U	Lepersonnite-(Gd)	CaGd2(UO3)24(CO3)8(SiO4)4O4·60(H2O)	8,909.01
63.90 % U	Yingjiangite	(K2,Ca)(UO2)7(PO4)4(OH)6·6(H2O)	2,607.53
63.79 % U	Holfertite !	U++++++1.75TiCa0.25 O7.5(H2O)3	649.27
63.73 % U	Phosphuranylite #	KCa(H3O)3(UO2)7(PO4)4O4·8(H2O)	2,614.45
63.63 % U	Studtite #	[(UO2)O2(H2O)2](H2O)2	374.09
63.47 % U	Arsenovanmeersscheite	U(OH)4[(UO2)3(AsO4)2(OH)2]·4H2O	1,500.06
63.34 % U	Curite #	Pb3+x(H2O)2[(UO2)4+x(OH)3-x]2, x~0.5	3,006.49
63.01 % U	Magnesiozippeite	Mg(H2O)3.5(UO2)2(SO4)O2	755.48
62.74 % U	Tengchongite	CaU++++++6Mo++++++2O25·12(H2O)	2,276.30
62.54 % U	Rabejacite	Ca(UO2)4(SO4)2(OH)6·6(H2O)	1,522.45
61.91 % U	Masuyite #	Pb[(UO2)3O3(OH)2]·3(H2O)	1,153.34
61.91 % U	Zippeite #	K4(UO2)6(SO4)3(OH)10·4(H2O)	2,306.88
61.26 % U	Francoisite-(Nd)	(Nd,Y,Sm,Ce)(UO2)3(PO4)2O(OH)·6(H2O)	1,243.40
61.13 % U	Mundite	Al(UO2)3(PO4)2(OH)3·5(H2O)	1,168.11
60.70 % U	Uranophane-beta #	Ca[(UO2)SiO3(OH)]2·(H2O)	784.33
60.58 % U	Calciouranoite	(Ca,Ba,Pb)U2O7·5(H2O)	667.92
60.52 % U	Sayrite	Pb2(UO2)5O6(OH)2·4(H2O)	1,966.61
60.48 % U	Arsenuranylite #	Ca(UO2)4(AsO4)2(OH)4·6(H2O)	1,574.15
60.42 % U	Chadwickite !	(UO2)H(AsO3)	393.96
60.25 % U	Vyacheslavite	U++++(PO4)(OH)·2.5(H2O)	395.05
60.20 % U	Upalite	Al(UO2)3(PO4)2O(OH)·7(H2O)	1,186.12
60.10 % U	Haynesite	(UO2)3(SeO3)2(OH)2·5(H2O)	1,188.09
59.99 % U	Wolsendorfite #	(Pb,Ba,Ca)U2O7·2(H2O)	793.61
59.74 % U	Roubaultite	Cu2(UO2)3(CO3)2O2(OH)2·4(H2O)	1,195.27
59.52 % U	Larisaite !	Na(H3O)(UO2)3(SeO3)2O2·4(H2O)	1,235.71
59.27 % U	Vandenbrandeite #	Cu(UO2)(OH)4	401.60
59.24 % U	Marecottite !	Mg3(H2O)18[(UO2)4O3(SO4)2]2·10(H2O)	3,310.81
59.10 % U	Spriggite !	Pb3[(UO2)6O8(OH)2](H2O)x; x ~ 3	2,424.63
59.03 % U	Bauranoite	BaU2O7·4-5(H2O)	806.45
58.09 % U	Natrozippeite	Na4(UO2)6(SO4)3(OH)10·4(H2O)	2,458.63
57.77 % U	Althupite	ThAl(UO2)7(PO4)4(OH)5·15(H2O)	2,884.36
57.67 % U	Phurcalite	Ca2(UO2)3O2(PO4)2·7(H2O)	1,238.29
57.49 % U	Nickelzippeite	Ni++2(UO2)6(SO4)3(OH)10·16(H2O)	2,484.05
57.48 % U	Cobaltzippeite	Co++2(UO2)6(SO4)3(OH)10·16(H2O)	2,484.54
57.39 % U	Piretite !	Ca(UO2)3(SeO3)2(OH)4-4(H2O)	1,244.17
57.34 % U	IMA2009-008	Y2[(UO2)8O6(SO4)4(OH)2]·26H2O	3,320.70
57.19 % U	Zinc-zippeite	Zn++2(UO2)6(SO4)3(OH)10·16(H2O)	2,497.45
56.97 % U	Renardite #	Pb(UO2)4(PO4)2(OH)4·7(H2O)	1,671.39
56.71 % U	Kamitugaite	PbAl(UO2)5(PO4)2(OH)9·9.5(H2O)	2,098.47
56.53 % U	Meta-autunite #	Ca(UO2)2(PO4)2·2-6(H2O)	842.14
56.34 % U	Swamboite	U++++++H6(UO2)6(SiO4)6·30(H2O)	2,957.20
56.12 % U	Francoisite-(Ce) !	(Ce,Nd,Ca)[(UO2)3O(OH)(PO4)2]·6(H2O)	1,272.47
55.80 % U	Kivuite ?	(Th,Ca,Pb)H2(UO2)4(PO4)2(OH)8·7(H2O)	1,706.20
55.48 % U	Triangulite	Al3(UO2)4(PO4)4(OH)5·5(H2O)	1,716.05
55.47 % U	Guilleminite	Ba(UO2)3(SeO3)2O2·3(H2O)	1,287.37
55.45 % U	Boltwoodite #	HK(UO2)(SiO4)·1.5(H2O)	429.24
55.44 % U	Sklodowskite #	(H3O)2Mg(UO2)2(SiO4)2·4(H2O)	858.63
55.24 % U	Cuprosklodowskite #	Cu[(UO2)(SiO2OH)]2·6(H2O)	861.84
55.10 % U	Metatyuyamunite #	Ca(UO2)2V2O8·3(H2O)	864.06
54.78 % U	Marthozite	Cu[(UO2)3(SeO3)2O2]·8(H2O)	1,303.67
54.61 % U	Oursinite	(Co,Mg)(H3O)2[(UO2)SiO4]2·3(H2O)	871.78
54.46 % U	Uramphite #	(NH4)(UO2)(PO4)·3(H2O)	437.08
54.34 % U	Deliensite !	Fe++(UO2)2(SO4)2(OH)2·3(H2O)	876.09
54.34 % U	Chernikovite	(H3O)2(UO2)2(PO4)2·6(H2O)	876.14
53.88 % U	Bijvoetite-(Y)	(Y,REE)8(H2O)25(UO2)16O8(OH)8(CO3)16·14(H2O)	7,068.68
53.60 % U	Sabugalite #	HAl(UO2)4(PO4)4·16(H2O)	1,776.23
53.44 % U	Phuralumite	Al2(UO2)3(PO4)2(OH)6·10(H2O)	1,336.19
53.41 % U	Schmitterite	(UO2)TeO3	445.63
53.28 % U	Orthobrannerite	U++++U++++++Ti4O12(OH)2	893.59
53.20 % U	Vanuranylite ?	(H3O,Ba,Ca,K)1.6(UO2)2V2O8·4(H2O) (?)	894.90
53.19 % U	Kamotoite-(Y)	(Y,Nd,Gd)2U++++++4(CO3)3O12·14.5(H2O)	1,790.08

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( Bold - Valid Mineral Name)
(* - Mineral Name is Not IMA Approved)
(! - New Dana Classification Number Has Been Changed or Added)
(? - IMA Discredited Mineral Species Name)
(# - Grandfathered as valid)