Mineral Species containing Tellurium (Te)

Element Properties, Isotopic Compositions for Tellurium

**Tellurium (Te) Element Properties**
Atomic Mass	127.6
Atomic Number	52
Name Origins	Latin, tellus = "earth."
Year Discovered	1783
Discovery Credits	Discovered by Baron Franz Joseph Muller von Reichenstein at Subiu, Romania.
Remarks	Silvery white, metallic looking in bulk but usually obtained as dark gray powder. Semi-metal. Burns in air or oxygen. Unaffected by water or HCl but dissolves in HNO3. Used in alloys to improve machine ability; chemicals, catalysts, electronics. Diagnostic tests: Tellurium and tellurides are detected by heating the powdered mineral in a test tube with 5cc of concentrated H₂SO₄ acid. The presence of a reddish-violet color suggests Te. After cooling, addition of water will cause the color to disappear and a grayish black precipitate of tellurium will appear. Open tube test of the powdered mineral oxidizes tellurium to TeO₂ which passes up the tube as a white smoke and condenses near the heated part as a white coating. The coating can be fused into a globule which is yellow when hot and white when cold. Closed tube test of the powdered mineral causes tellurium to volatize and condense on the hot glass as fused globules having a metallic luster. Minor amounts of white oxide may be produced along with the metallic globules. On charcoal, the blowpipe produces a white sublimate near the assay somewhat resembling the test for antimony. The sublimate can be blasted with the blowpipe flame and imparts a pale greenish color to the flame test.
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 %
Te	119.904048	120	52	0.0090%		Stable
Te	121.903054	122	52	2.5700%		Stable
Te	122.904271	123	52	0.8900%	1.3x10¹³	Years	EC	0.052	100.00%
Te	123.902823	124	52	4.7600%		Stable
Te	124.904433	125	52	7.1000%		Stable
Te	125.903314	126	52	18.8900%		Stable	beta	0.697	100.00%
Te	126.905227	127	52	0.0000%	9.8	Hours
Te	127.904463	128	52	31.7300%		Stable
Te	129.906229	130	52	33.97	2.4x10²³	Years	?	?	100.00%

Tellurium (Te) Minerals sorted by Descending Weight Percent

Click here for List sorted by Mineral Name

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**157 Minerals containing Tellurium (Te) sorted by Descending Weight Percent**
% Te	Mineral Name	Chemical Formula	MW
24.95 % Te	Girdite	Pb3H2(Te++++O3)(Te++++++O6)	1,022.81
24.36 % Te	Schieffelinite	Pb(Te++++++,S)O4·(H2O)	392.93
24.13 % Te	Mayingite	IrBiTe	528.80
24.00 % Te	Maslovite	PtBiTe	531.66
24.00 % Te	Tsnigriite	Ag9SbTe3(S,Se)3	1,595.01
23.86 % Te	IMA2009-024	Pb6CuTe4O18(OH)2	2,139.15
23.77 % Te	Quetzalcoatlite	Zn8Cu4(TeO3)3(OH)18	1,610.23
22.99 % Te	Goldfieldite #	Cu12(Te,Sb,As)4S13	1,665.23
22.17 % Te	Brumadoite !	Cu3(TeO4)(OH)4·5H2O	535.15
22.12 % Te	Magnolite #	Hg+2Te++++O3	576.78
21.78 % Te	Buckhornite	AuPb2BiTe2S3	1,171.74
21.62 % Te	Bilibinskite	Au3Cu2PbTe2	1,180.39
21.59 % Te	Cervelleite	Ag4TeS	591.14
21.56 % Te	Saddlebackite !	Pb2Bi2Te2S3	1,183.76
21.53 % Te	Bogdanovite	(Au,Te,Pb)3(Cu,Fe)	592.69
21.05 % Te	Kurilite ?	(Ag,Au)2(Te,Se,S)	363.74
20.74 % Te	Hedleyite #	Bi7Te3 (?)	1,845.66
20.40 % Te	Smirnite	Bi2Te++++O5	625.56
19.47 % Te	Khinite	PbCu++3Te++++++O6(OH)2	655.45
19.44 % Te	Benleonardite	Ag8(Sb,As)Te2S3	1,312.68
19.32 % Te	Poubaite	PbBi2Se2(Te,S)2	990.51
19.22 % Te	Oulankaite !	(Pd,Pt)5(Cu,Fe)4SnTe2S2	1,327.45
18.83 % Te	Montanite #	Bi2Te++++++O6·2(H2O)	677.59
18.58 % Te	Yecoraite	Bi5Fe+++3(Te++++O3)(Te++++++O4)2O9·9(H2O)	2,059.88
18.45 % Te	Parakhinite	Cu++3PbTe++++++O4(OH)6	691.48
18.05 % Te	Chenguodaite !	Ag9FeTe2S4	1,406.90
16.78 % Te	Miessiite !	Pd11Te2Se2	1,589.46
15.90 % Te	Baksanite !	Bi6Te2S3	1,605.28
15.59 % Te	Sztrokayite *	Bi3TeS2	818.67
15.11 % Te	Tlalocite	Cu10Zn6(Te++++O3)(Te++++++O4)2Cl(OH)25·27(H2O)	2,533.64
14.86 % Te	Pingguite	Bi+++6Te++++2O13	1,717.07
14.48 % Te	Telluronevskite !	Bi3TeSe2	890.10
14.12 % Te	IMA2009-023	Pb6(Te2O10)(CO3)Cl2(H2O)	1,807.32
14.08 % Te	Skippenite	Bi2Se2(Te,S)	679.60
13.65 % Te	Burckhardtite	Pb2(Fe+++,Mn+++)Te++++(AlSi3O10)O2(OH)2·(H2O)	934.87
12.53 % Te	Chiluite	Bi6Te++++++2Mo++++++2O21	2,036.95
12.42 % Te	Protojoseite *	Bi4TeS2 (?)	1,027.65
12.04 % Te	Ingodite	Bi(S,Te)	264.93
11.72 % Te	Museumite !	Pb2(Pb,Sb)2S8[Te,Au]2	1,992.56
11.38 % Te	Tellurohauchecornite	Ni9BiTeS8	1,121.32
10.71 % Te	Nabokoite	Cu++7Te++++O4(SO4)5·KCl	1,191.29
10.36 % Te	Kuksite	Pb3Zn3Te++++++O6(PO4)2	1,231.31
10.04 % Te	Cheremnykhite	Zn3Pb3Te++++O6(VO4)2	1,271.24
9.80 % Te	Dugganite	Pb3Zn3Te(As,V,Si)2(O,OH)14	1,302.29
9.53 % Te	Joseite #	Bi4(S,Te)3	1,003.77
9.53 % Te	Joseite-B #	Bi4(S,Te)3	1,003.77
8.91 % Te	Bezsmertnovite	Au4Cu(Te,Pb)	1,002.89
8.20 % Te	Vincentite	(Pd,Pt)3(As,Sb,Te)	466.99
8.02 % Te	Vihorlatite !	Bi24Se17Te4	6,525.04
2.52 % Te	Vasilite	(Pd,Cu)16(S,Te)7	1,870.08
2.41 % Te	Arcubisite	Ag6CuBiS4	1,058.03
1.03 % Te	Atlasovite	Cu6Fe+++Bi+++O4(SO4)5·KCl	1,242.08
0.77 % Te	Cupromakovickyite !	Cu4AgPb2Bi9S18	6,445.41
0.29 % Te	Skaergaardite !	CuPd	173.19
0.23 % Te	Paderaite	Cu7((Cu,Ag)0.33Pb1.33Bi11.33)13S22	3,824.86
0.10 % Te	Ungavaite !	Pd4Sb3	790.08

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