Mineral Species containing Bromine (Br)

Element Properties, Isotopic Compositions for Bromine

**Bromine (Br) Element Properties**
Atomic Mass	79.904
Atomic Number	35
Name Origins	Greek, bromos - "stench."
Year Discovered	1826
Discovery Credits	A. J. Balard at Montpellier, France and C. Lowig at Heidelberg in Germany.
Remarks	Deep red, dense, sharp smelling liquid, Br₂. Compounds used in fuel additives, pesticides, flame-retardants, and photography. Bromine is recovered from sea water and oil field brines. Diagnostic tests: Bromine salts (along with F, Cl, and I) will give a blue color to flames when heated on a copper disk. Treatment of the salt with concentrated H₂SO₄ acid will effervesce with the evolution of a brown gas (Br₂). Bromine is always found associated with chlorine or iodine so a precipitate with AgNO₃ solution is white (AgCl), cream (AgBr), or yellow (AgI) depending on which anion predominates.
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 %
Br	78.918336	79	35	50.6900%		Stable
Br	80.916289	81	35	49.3100%		Stable

Bromine (Br) Minerals sorted by Descending Weight Percent

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**24 Minerals containing Bromine (Br) sorted by Descending Weight Percent**
% Br	Mineral Name	Chemical Formula	MW
42.55 % Br	Bromargyrite #	AgBr	187.77
24.13 % Br	Embolite *	Ag(Br,Cl)	165.55
22.25 % Br	Kuzminite	Hg2(Br,Cl)2	538.76
17.47 % Br	Demicheleite-(Br) !	BiSBr	306.48
14.92 % Br	Arzakite	Hg3S2(Br,Cl)2	803.48
12.54 % Br	Kadyrelite	Hg4(Br,Cl)2O	955.94
9.77 % Br	Grechishchevite	Hg3S2(Br,Cl,I)2	817.84
6.07 % Br	Lafossaite !	Tl(Cl,Br)	252.93
6.02 % Br	Capgaronnite	HgAg(Cl,Br,I)S	398.46
5.26 % Br	Lavrentievite	Hg3S2(Cl,Br)2	759.03
5.16 % Br	Iltisite !	HgSAg(Cl,Br)	387.09
4.15 % Br	Steropesite !	Tl3BiCl6	1,077.12
3.15 % Br	Murdochite #	PbCu6O8-x(Cl,Br)2x	760.62
2.96 % Br	Tedhadleyite !	Hg++Hg+10O4I2(Cl1.16Br0.84)2	2,698.11
2.88 % Br	Kelyanite	(Hg+2)6(SbO6)BrCl2	2,775.64
2.59 % Br	Comancheite	Hg13(Cl,Br)8O9	3,079.74
2.51 % Br	Vasilyevite !	(Hg2)++10O6I3Cl(CO3)	4,836.00
2.14 % Br	Perroudite	Hg5Ag4S5(I,Br)2Cl2	1,863.90
1.50 % Br	Panichiite !	(NH4)2SnCl6	371.89
1.41 % Br	Hephaistosite !	TlPb2Cl5	793.05
1.24 % Br	Terlinguacreekite !	Hg++3O2Cl2	709.92
1.07 % Br	Mutnovskite !	Pb2AsS3(I,Cl,Br)	670.21
0.24 % Br	Vurroite !	Pb20Sn2(Bi,As)22S54Cl6	9,577.60
0.15 % Br	Aurivilliusite !	Hg+Hg++OI	541.59

( 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)