Descoberta	1828 Berzelius
Abundância	9.6
Raio	0
Eletronegatividade	1.3
Ionização	6.3067
Número de isótopos	12
Configuração eletrônica	[Rn] 6d2 7s2
Estados de oxidação	2,3,4
Elétron por nível de energia	2,8,18,32,18,10,2

Minerais que contêm este elemento : 81

Mineral	Dureza	Densidade	Fórmula
	5.00 / 6.00	5.19	(Ce,Ca,Fe,Th)(Ti,Nb)₂(O,OH)₆
	5.00 / 6.00	4.85	(Y,Ca,Th)(Ti,Nb)₂(O,OH)₆
	6.00 / 6.00	3.93	CaLaAl₂Fe²⁺(Si₂O₇)(SiO₄)O(OH)
	3.50 / 4.00	3.90	AlTh(UO₂)₇(PO₄)₄O₂(OH)₅Â·15H₂O
	5.50 / 6.00	3.43	(K_1-x_x)(Ca,Na)₂U⁴⁺Si₈O₂₀ (x~0.5)
	3.00 / 4.00	4.07	₁₂(Fe³⁺,Fe²⁺)₃Nb₄[Th(Nb,Fe³⁺)₁₂O₄₂](H₂O,OH)₁₂
	5.50 / 5.50	4.72	CaTh(PO₄)₂
	5.50 / 5.50	4.20	(Ce,Ca)₅(SiO₄)₃OH
	3.00 / 4.00	3.70	(Ca,Th,Ce)PO₄Â·H₂O
		3.00	(Na,H₂O)₆(Ce,REE)₃Be₅MnSi₉(O,OH)₃₀F₄
			Th₂F₇(OH)Â·3H₂O
	4.50 / 5.50	4.20	(Ca,Na)₂(Nb,Ti)₂(O,OH)₇
		7.22	CeO₂
	5.00 / 5.00		(Ce,Nd,La)(Fe³⁺,Ti,Fe²⁺,Al)₃O₂(Si₂O₇)_1-x+y(AsO₃)_1+x-y(OH)_3x-3y, x=0.5, y=0.3
	5.00 / 5.00	5.00	CaTh(PO₄)₂
	5.00 / 5.50	4.50	Ce₄(Ti,Fe²⁺,Fe³⁺)₅O₈(Si₂O₇)₂
			Ca₄(Th,REE)₂Al(B₄Si₄O₂₂)(OH)₂
	1.50 / 1.50		Th_xBa_1-2x(UO₂)₂Si₅O₁₃Â·3H₂O
	6.00 / 6.00	4.83	(Ce³⁺,La)₄Fe²⁺(Ti,Fe²⁺,Mg,Fe³⁺)₂Ti₂Si₄O₂₂
	6.50 / 7.00	3.79	CaLaMgAl₂(Si₂O₇)(SiO₄)O(OH)
	4.50 / 4.50	3.08	Ca₂ThSi₈O₂₀
	6.50 / 6.50	4.70	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
	3.00 / 4.00	3.38	Th_0.75Al₃(PO₄)₂(OH)₆
	4.00 / 4.50	4.69	(Ca,Ce,Na)(Nb,Ta,Ti)₂(O,OH,F)₆
	5.00 / 5.00	4.66	(Ce,Ca)₅(SiO₄)₃F
	5.50 / 5.50	4.20	(Ca,REE)₅(SiO₄,PO₄)₃F
	3.00 / 4.00	3.70	(Th,Pb,Ca)PO₄Â·H₂O
	5.00 / 5.00	7.10	ThSiO₄
		5.40	(Mn,Th,Na,Ca,REE)₂(Nb,Ti)₂O₆(OH)
		4.26	Th(MoO₄)₂Â·3H₂O
	4.00 / 4.00	3.60	(Ba,Na)₁₀K₃Na_4.5Ce₅(Nb,Ti)₆O₆(Si₁₂O₃₆)(Si₉O₁₈)(O,OH)₂₄
	4.50 / 4.50	3.27	KCa₄(La,Ce,Th)₂Si₁₆O₄₀
	6.00 / 6.00	7.10	YTaO₄
	2.00 / 2.00	2.89	CeTiAlSi₂O₇(OH)₄Â·3H₂O
	4.50 / 5.50	4.66	Na₂Ce₂Ba₆(PO₄)₆FCl
	4.00 / 4.00	4.65	Ba₂La(CO₃)₃F
	8.00 / 8.50	4.59	CaZrO₃
	5.50 / 5.50	4.77	(Na,Ce,Sr)(Ce,Th)(Ti,Nb)₂O₆
	5.00 / 6.00	4.13	Ce₅(SiO₄,BO₄)₃(OH,O)
	4.00 / 4.00	4.18	Ba₃MgZr₄Nb₁₂O₄₂Â·12H₂O
	5.00 / 5.50	4.80	CePO₄
	5.00 / 5.50	4.80	LaPO₄
	5.00 / 5.50	4.80	NdPO₄
		5.51	SmPO₄
		3.61	Ca₄(CeCa)AlBe₂(B₄Si₄O₂₂)O₂
	5.00 / 6.00	5.34	(Y,REE,Ca,Th,Fe)(Nb,Ti,Ta)₂(O,OH)₆
		5.15	Th(MoO₄)₂Â·H₂O
	4.00 / 4.00	4.35	(Y,REE,Ca,Na,Th)₁₆(Fe³⁺,Ti)(Si,B,P)₁₀(O,OH)₃₈F₁₀
	5.50 / 5.50	4.29	Ce₄MgFe³⁺₂Ti⁴⁺₂O₈(Si₂O₇)₂
	5.50 / 6.00		Ca₈Ce₂AlLiSi₆B₈O₃₆(OH)₂
	5.50 / 6.00	4.75	(Ce,Ca)₄MgCr₂(Ti,Nb)₂Si₄O₂₂
	5.00 / 6.00	4.97	Y(Ti,Nb)₂(O,OH)₆
	5.00 / 5.00	4.72	(Y,REE,Ca,Na,Mn)₁₅CaFe²⁺(P,Si)Si₆B₃O₃₄F₁₄
	5.00 / 6.00	7.03	YbNbO₄
	3.50 / 4.00	3.07	Ca(Y,Th)Al₅(SiO₄)₂(PO₄)₂(OH)₇Â·6H₂O
	3.00 / 3.00		Na₃LaSi₆O₁₅Â·2H₂O
			(Th,Ca)PO₄Â·nH₂O
	5.00 / 5.00	2.95	K_0.3(Na,Ca)₂ThSi₈O₂₀
	4.00 / 4.00	3.40	Na₁₄Ce₆Mn²⁺₂Fe³⁺₂Zr(PO₄)₇Si₁₂O₃₆(OH)₂Â·3H₂O
	4.00 / 4.50	4.04	ThCa(CO₃)₂F₂Â·3H₂O
	6.00 / 6.00	10.00	ThO₂
			(Ca,Th,Na,Ce)₂(Nb,Zr,Ti,Fe)₂(O,OH,F)₇
	5.00 / 5.00	4.00	ThSiO₄
		2.62	Na₁₂Th₃(Si₈O₁₉)₄Â·18H₂O
	5.50 / 5.50	5.40	(Th,U⁶⁺)[(SiO₄),(OH)₄]
	4.00 / 4.00	3.02	(Ca,Th,Mn)₃Si₄O₁₁FÂ·6H₂O
			Th₂CaSi₉O₂₂(OH)₂Â·nH₂O
	4.50 / 5.50	5.82	(Th,U,Ca)Ti₂(O,OH)₆
	5.50 / 5.50	4.20	Ce₅(SiO₄,BO₄)₃(OH,O)
	3.00 / 4.00	3.15	Na₆BaTh(CO₃)₆Â·6H₂O
	5.50 / 6.00	3.36	(K)(Ca,Na)₂ThSi₈O₂₀Â·nH₂O
	5.00 / 6.00	4.19	Mn²⁺CeAl₂Fe²⁺(Si₂O₇)(SiO₄)O(OH)
	5.00 / 5.00	3.60	Na₃Sr₄ThSi₈(O,OH)₂₄
	5.00 / 6.00	5.50	(U,Y)(Ti,Nb,Ta)₂(O,OH)₆
	5.50 / 6.00	4.73	(Ca,Ce,La,Th)₁₅As⁵⁺(As³⁺,Na)_0.5Fe³⁺_0.7Si₆B₄(O,F)₄₇
	5.00 / 5.00	2.83	K₃NaCaY₂Si₁₂O₃₀Â·4H₂O
	5.00 / 5.50	4.58	Y₂Si₂O₇
	4.50 / 5.50	3.65	(Y,U,Ce)₂(Ti,Nb,Ta)₂(O,OH)₇
	5.50 / 6.00	4.80	(Y,Th,Ca,U)(Ti,Fe)₂(O,OH)₆
	5.50 / 5.50	4.70	(Ca,Fe,Y,Th)₂Fe(Ti,Nb)₃Zr₂O₁₄
	5.50 / 5.50	4.70	(Ti,Ca,Zr)O_2-x