ElementBarium
SymbolBa
Atomic Mass137.327
Atomic Number56
Name OriginsGreek, barys = heavy
Year Discovered1808
Discovered CreditsIsolated by Sir Humphrey Davy at London, UK.
RemarksRelatively soft, silvery-white metal. Obtained from BaO on heating with aluminum. Attacked by air and water. Used mainly as BaSO4 in drilling fluids for oil and gas exploration; small amounts used in paints, glass, etc
Diagnostic TestsA yellowish green coloration of the flame test is given by all barium salts, except the silicates and phosphates. In solution, the presence of barium is proved by the heavy white precipitate formed by the addition of dilute H2SO4.
ReferencesEmsley, J., 1991; THE ELEMENTS : Sec. Ed., Clarendon Press, Oxford, 251 p.

Naturally Ocurring Isotopes :

Mass Nuclide Number Natural Abundance Half-life Half-life Unit Decay Mode Decay Mode MeV Decay Mode %
129.906282 130 0.106 % Stable
131.905042 132 0.101 % Stable
133.904486 134 2.417 % Stable
134.905665 135 6.592 % Stable
135.904553 137 7.854 % Stable
136.905812 138 11.23 % Stable
137.905232 139 71.7 % Stable

215 Minerals sorted by % of Ba (Barium) :

Frankdicksonite78.33 %BaF2
Witherite69.59 %BaCO3
Alforsite68.19 %Ba5(PO4)3Cl
Barite58.84 %BaSO4
Radiobarite58.83 %(Ba,Ra)SO4
Hashemite55.30 %Ba(Cr,S)O4
Muirite54.36 %Ba10Ca2Mn++TiSi10O30(OH,Cl,F)10
Fresnoite54.20 %Ba2TiSi2O8
Kampfite53.98 %Ba6[(Si,Al)O2]8(CO3)2Cl2(Cl,H2O)2
Babefphite52.91 %BaBe(PO4)(F,O)
Nitrobarite52.55 %Ba(NO3)2
Sanbornite50.21 %BaSi2O5
Norsethite48.76 %BaMg(CO3)2
Gamagarite47.59 %Ba2(Fe+++,Mn+++)(VO4)2(OH)
Curetonite47.35 %Ba4Al3Ti(PO4)4(O,OH)6
Verplanckite46.92 %Ba2(Mn++,Ti,Fe++)2Si2O6(O,OH,Cl,F)23(H2O)
Garrelsite-V46.25 %Ba3NaSi2B7O16(OH)4
Garrelsite-VIII46.25 %Ba3NaSi2B7O16(OH)4
Alstonite46.17 %BaCa(CO3)2
Barytocalcite46.17 %BaCa(CO3)2
Paralstonite46.17 %BaCa(CO3)2
Traskite45.73 %(Ba,Ca)9(Fe++,Mn)2Ti2(SiO3)12(OH,Cl,F)66(H2O)
Fencooperite44.99 %Ba6Fe+++3Si8O23(CO3)2Cl3H2O
Kukharenkoite-(Ce)44.75 %Ba2Ce(CO3)3F
Zhonghuacerite-(Ce)44.74 %Ba2Ce(CO3)3F
Barylite42.45 %BaBe2Si2O7
Krauskopfite41.93 %BaSi2O4(OH)22(H2O)
Usovite41.68 %Ba2CaMgAl2F14
Morelandite40.96 %(Ba,Ca,Pb)5(AsO4,PO4)3Cl
Mckelveyite-(Y)40.09 %Ba3Na(Ca,U)Y(CO3)63(H2O)
Cebaite-(Ce)39.99 %Ba3Ce2(CO3)5F2
Cebaite-(Nd)39.75 %Ba3(Nd,Ce)2(CO3)5F2
Bigcreekite39.74 %BaSi2O54(H2O)
Innelite39.57 %(Na,Mg,Ca)2(Ba,K)4Ti3(Si2O7)2(SO4)2(OH,F)
Cerchiaraite39.27 %Ba4(Mn,Fe,Al)4Si6(O,OH,Cl)26
Suzukiite38.53 %BaVO(SiO3)2
IMA2000-03538.01 %Na2Ba2FeTiSi2O7(CO3)(OH)3F
Nagashimalite37.25 %Ba4(V+++,Ti)4Si8B2O27Cl(O,OH)2
Titantaramellite37.12 %Ba4(Ti,Fe+++,Fe++,Mg)4(B2Si8O27)O2Clx X=0 TO 1, with Ti > Fe
Celsian36.58 %BaAl2Si2O8
Paracelsian36.58 %BaAl2Si2O8
Yoshimuraite35.06 %(Ba,Sr)2(Mn,Fe)2(Ti,Fe)(Si2O7)2(PO4,SO4)(OH)
Strakhovite34.97 %NaBa3(Mn++,Mn+++)4Si6O19(OH)3
Ewaldite34.94 %(Ba,Sr)(Ca,Na,Y,Ce)(CO3)210-12(H2O)
Cymrite34.90 %BaAl2Si2O8(H2O)
Baotite34.70 %Ba4(Ti,Nb)8Si4O28Cl
Dresserite34.56 %BaAl2(CO3)2(OH)4(H2O)
Benstonite34.02 %(Ba,Sr)6(Ca,Mn)6Mg(CO3)13
Kapitsaite-(Y)33.85 %(Ba,K,Pb,Na)4(Y,Ca,REE)2[Si8B2(B,Si)2O28F]
Krasnovite33.75 %Ba(Al,Mg)(PO4,CO3)(OH)2(H2O)
Benitoite33.21 %BaTiSi3O9
Andremeyerite33.19 %BaFe(Fe++,Mn,Mg)Si2O7
Jagowerite33.07 %BaAl2(PO4)2(OH)2
Huanghoite-(Ce)32.97 %BaCe(CO3)2F
Nabaphite32.90 %NaBaPO49(H2O)
Pellyite32.63 %Ba2Ca(Fe++,Mg)2Si6O17
Hydrodresserite31.69 %BaAl2(CO3)2(OH)43(H2O)
Taikanite31.02 %(Ba,Sr)2Mn+++2Si4O12
Delindeite30.98 %Ba2(Na,K,[ ])3(Ti,Fe)[Ti2(O,OH)4Si4O14](H2O,OH)2
Walstromite30.81 %BaCa2Si3O9
Bogvadite30.65 %Na2SrBa2Al4F20
Taramellite30.60 %Ba4(Fe+++,Ti,Fe++,Mg)4(B2Si8O27)O2Clx (x=0 to 1)
Barytolamprophyllite30.35 %Ba2Na3(Fe+++,Ti)3(Si2O7)2(O,OH,F)4
Bazirite30.06 %BaZrSi3O9
Jonesite30.02 %Ba4(K,Na)2Ti4Al2Si10O366(H2O)
Gillespite29.50 %BaFe++Si4O10
Pabstite29.43 %Ba(Sn,Ti)Si3O9
Noelbensonite29.38 %BaMn+++2(Si2O7)(OH)2(H2O)
Belkovite29.27 %Ba3(Nb,Ti)6(Si2O7)2O12
Effenbergerite29.02 %BaCuSi4O10
Bafertisite27.62 %Ba(Fe++,Mn)2TiSi2O7(O,OH)2
Orthoericssonite27.24 %BaMn2(Fe+++O)Si2O7(OH)
Ericssonite27.24 %BaMn++2Fe+++O[Si2O7](OH)
Olgite27.11 %Na(Sr,Ba)PO4
Edingtonite27.05 %BaAl2Si3O104(H2O)
Komkovite26.88 %BaZrSi3O93(H2O)
Gorceixite26.86 %BaAl3(PO4)(PO3OH)(OH)6
Hejtmanite26.68 %Ba(Mn,Fe++)2TiO(Si2O7)(OH,F)2
Batisite26.37 %(Ba,K,Na)3Ti2Si4O14
Hyalotekite25.81 %(Ba,Pb,Ca,K)6(B,Si,Al)2(Si,Be)10O28(F,Cl)
Bariosincosite25.75 %Ba(V++++O)2(PO4)24(H2O)
Weilerite23.79 %BaAl3H[(As,P)O4]2(OH)6
Springcreekite23.53 %BaV+++3(PO4)2(OH,H2O)6
Penikisite23.53 %BaMg2Al2(PO4)3(OH)3
Arsenogorceixite23.31 %BaAl3AsO3(OH)(AsO4,PO4)(OH,F)6
Bjarebyite23.28 %(Ba,Sr)(Mn++,Fe++,Mg)2Al2(PO4)3(OH)3
Psilomelane23.27 %(Ba,H2O)2Mn5O10
Vesignieite23.20 %Cu3Ba(VO4)2(OH)2
Mckelveyite-(Nd)22.54 %Na(Ba,Sr)3Ca(Nd,Ce,La)(CO3)63(H2O) (?)
Khanneshite22.40 %(NaCa)3(Ba,Sr,Ce,Ca)3(CO3)5
Stenonite22.02 %(Sr,Ba,Na)2Al(CO3)F5
Wenkite21.92 %Ba4Ca6(Si,Al)20O39(OH)2(SO4)3n(H2O) (?)
Cordylite-(Ce)21.63 %Ba(Ce,La)2(CO3)3F2
Kulanite21.54 %Ba(Fe++,Mn,Mg)2Al2(PO4)3(OH)3
Strontio-orthojoaquinite21.39 %(Na,Fe++)2Ba2Sr2Ti2[Si4O12]2(O,OH)2(H2O)
Strontiojoaquinite21.39 %(Na,Fe++)2Ba2Sr2Ti2[Si4O12]2(O,OH)2(H2O)
Bario-orthojoaquinite20.87 %Fe++2(Ba,Sr)4Ti2[Si4O12]O2(H2O)
Banalsite20.82 %BaNa2Al4Si4O16
Dussertite20.57 %BaFe+++3(AsO4)2(OH)5
Johntomaite19.90 %Ba(Fe++,Ca,Mn++)2Fe+++2(PO4)3(OH)3
Orthojoaquinite-(Ce)19.79 %NaFe++Ba2Ce2Ti2[Si4O12]2 O2(OH)(H2O)
Byelorussite-(Ce)19.55 %NaBa2(Ce,La)2Mn++Ti2Si8O26(F,OH)(H2O)
Joaquinite-(Ce)19.35 %NaFe++Ba2Ce2(Ti,Nb)2[Si4O12]2O2(OH,F)(H2O)
Orthojoaquinite-(La)19.21 %Ba2Na(La,Ce)2Fe++Ti2Si8O26(OH,O,F)H2O
Balipholite19.12 %BaMg2LiAl3Si4O12(OH,F)8
Harmotome18.97 %(Ba,Na,K)1-2(Si,Al)8O166(H2O)
Ankangite18.81 %Ba(Ti,V+++,Cr+++)8O16
IMA2000-03318.27 %(Ba,Na,K)(Al,Mg)2(Si,Al)4O10(OH)2
Ilimaussite-(Ce)18.18 %Ba2Na4CeFe+++Nb2Si8O285(H2O)
Perloffite18.15 %Ba(Mn,Fe++)2Fe+++2(PO4)3(OH)3
Romanechite17.66 %(Ba,H2O)2(Mn++++,Mn+++)5O10
Rimkorolgite17.54 %Mg5Ba(PO4)48(H2O)
Henrymeyerite17.51 %BaFe++Ti7O16
Burbankite17.51 %(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Anandite17.36 %(Ba,K)(Fe++,Mg)3(Si,Al,Fe)4O10(S,OH)2
Tienshanite17.25 %BaNa2MnTiB2Si6O20
Mannardite17.16 %BaTi6V+++2O16(H2O)
Redledgeite17.11 %BaTi6Cr+++2O16(H2O)
Bauranoite17.03 %BaU2O74-5(H2O)
Kinoshitalite16.96 %(Ba,K)(Mg,Mn,Al)3Si2Al2O10(OH)2
Owensite16.41 %(Ba,Pb)6(Cu,Fe,Ni)25S27
Barium-alumopharmacosiderite16.40 %BaAl4(AsO4)3(OH)55(H2O)
Jorgensenite15.76 %Na2(Sr,Ba)14Na2Al12F64(OH,F)
Walthierite15.47 %Ba0.5Al3(SO4)2(OH)6
Lamprophyllite15.40 %Na2(Sr,Ba)2Ti3(SiO4)4(OH,F)2
Jeppeite14.98 %(K,Ba)2(Ti,Fe+++)6O13
Brewsterite-Ba14.85 %(Ba,Sr)Al2Si6O165(H2O)
Magbasite14.56 %KBa(Al,Sc)(Mg,Fe++)6Si6O20F2
Barium-pharmacosiderite14.42 %BaFe+++4(AsO4)3(OH)55(H2O)
Tuliokite14.08 %BaNa6Th(CO3)66(H2O)
Bornemanite13.95 %BaNa4Ti2NbSi4O17(F,OH)Na3PO4
Meta-uranocircite13.82 %Ba(UO2)2(PO4)26-8(H2O)
Hawthorneite13.20 %Ba[Ti3Cr4Fe4Mg]O19
Haggertyite13.20 %Ba[Fe++6Ti5Mg]O19
Ferrokinoshitalite13.05 %(Ba,K)(Fe++,Mg)3(Si2Al2)O10 (OH,F)2
Hollandite12.88 %Ba(Mn++++,Mn++)8O16
Protasite12.67 %Ba(UO2)3O3(OH)23(H2O)
Uranocircite12.67 %Ba(UO2)2(PO4)212(H2O)
Parabariomicrolite12.59 %BaTa4O10(OH)22H20
Metaheinrichite12.49 %Ba(UO2)2(AsO4)28(H2O)
Leucosphenite12.40 %Na4BaTi2O2[B2Si10O28]
Bergenite12.31 %(Ba,Ca)2(UO2)3(PO4)2(OH)45.5(H2O)
Bariopyrochlore11.99 %(Ba,Sr)(Nb,Ti)2(O,OH)7
Wellsite11.96 %(Ba,Ca,K2)Al2Si6O166(H2O)
Armenite11.96 %BaCa2Al6Si9O302(H2O)
Heinrichite11.91 %Ba(UO2)2(AsO4)210-12(H2O)
Perraultite11.66 %(Na,Ca)2(Ba,K)2(Mn++,Fe++)8(Ti,Nb)4Si8O32(OH,F,O)6
Labuntsovite-Mg11.63 %Na4K4[Ba2(H2O,OH)2]Mg[Ti8(Si4O12)4(O,OH)8]8H2O
Labuntsovite-Fe11.48 %Na4K4[Ba2(H2O,OH)2]Fe[Ti8(Si4O12)4(O,OH)8]8H2O
Ferrazite11.40 %(Pb,Ba)3(PO4)28(H2O) (?)
Hyalophane11.37 %(K,Ba)Al(Si,Al)3O8
Batiferrite10.90 %Ba(Ti2Fe+++8Fe++2)O19
Guilleminite10.67 %Ba(UO2)3(SeO3)2O23(H2O)
Francevillite10.52 %(Ba,Pb)(UO2)2V2O85(H2O)
Labuntsovite-Mn10.27 %Na2K2Ba1-xTi4(Si4O12)2(O,OH)45H2O
Lourenswalsite10.25 %(K,Ba)2(Ti,Mg,Ca,Fe)4(Si,Al,Fe)6O14(OH)12
Cappelenite-(Y)10.22 %Ba(Y,Ce)6Si3B6O24F2
Nabiasite10.01 %BaMn9[(V,As)O4]6(OH)2
Nastrophite9.03 %Na(Sr,Ba)(PO4)9(H2O)
Macdonaldite8.93 %BaCa4[Si16O36(OH)2]10(H2O)
Chernykhite8.81 %(Ba,Na)V+++,Al)2(Si,Al)4O10(OH)2
Jinshajiangite8.53 %Na2K5BaCa(Fe,Mn)8(Ti,Fe,Nb,Zr)4Si8O32(O,F,H2O)6
Chromphyllite8.26 %(K,Ba)(Cr,Al)2[AlSi3O10](OH,F)2
Bariomicrolite8.14 %Ba(Ta,Nb)2(O,OH)7
Labuntsovite8.00 %(K,Ba,Na)8(Ti,Nb)9[(Si,Al)4O12]4(O,OH)10n(H2O)
Yuksporite7.70 %(K,Ba)(Na,Sr)Ca2(Si,Ti)4O11(F,OH)n(H2O)
Shcherbakovite7.02 %(K,Na,Ba)3(Ti,Nb)2Si4O14
Phosphovanadylite6.92 %(Ba,Ca,K,Na)x[(V,Al)4P2(O,OH)16]12(H2O) x~0.66
Billietite6.88 %Ba(UO2)6O4(OH)68(H2O)
Mineevite-(Y)6.49 %Na25Ba(Y,Gd,Dy)2(HCO3)4(CO3)11(SO4)2ClF2
Brewsterite6.18 %(Sr,Ba,Ca)Al2Si6O165(H2O)
Brewsterite-Sr6.18 %(Sr,Ba,Ca)Al2Si6O165(H2O)
Daqingshanite-(Ce)6.03 %(Sr,Ca,Ba)3(Ce,La)(PO4)(CO3)3-x(OH,F)x
Lindsleyite5.84 %(Ba,Sr)(Ti,Cr,Fe,Mg)21O38
Priderite5.76 %(K,Ba)(Ti,Fe+++)8O16
IMA2001-0075.63 %(K,Ba)2Fe(Ti,Nb)4(Si4O12)2(O,OH)47H2O
Carbocernaite5.20 %(Ca,Na)(Sr,Ce,Ba)(CO3)2
Wolsendorfite5.19 %(Pb,Ba,Ca)U2O72(H2O)
IMA2001-0605.14 %(Na,Ba){Na3Ti[Ti2O2Si4O14](OH,F)2}
Ilmajokite4.91 %(Na,Ce,La,Ba)2TiSi3O5(OH)10n(H2O) (?)
Sigismundite4.90 %(Ba,K,Pb)Na3(Ca,Sr)(Fe++,Mg,Mn)14Al(OH)2(PO4)12
Olekminskite4.80 %Sr(Sr,Ca,Ba)(CO3)2
Benauite4.55 %HSrFe+++3(PO4)2(OH)6
Barium-zinc-alumopharmacosiderite4.51 %(Ba,K)0.5(Zn,Cu)0.5(Al,Fe)4(AsO4)35(H2O)
Haradaite4.50 %Sr2V+++2O2(Si4O12)
Hyttsjoite4.01 %Pb18Ba2Ca5Mn++2Fe+++2Si30O90Cl6(H2O)
Weeksite4.00 %K2[(UO2)2(Si5O13)]1.4(H2O)
Petersenite-(Ce)3.95 %(Na,Ca)4(Ce,La,Nd,Sr,Pr,Sm,Ba)2(CO3)5
Metacalciouranoite3.82 %(Ca,Na,Ba)U2O72(H2O)
Uranotungstite3.53 %(Fe++,Ba,Pb)(UO2)2WO4(OH)412(H2O)
Straczekite3.12 %(Ca,K,Ba)2V8O203(H2O)
Bariumbannisterite2.82 %(K,H3O)(Ba,Ca)(Mn++,Fe++,Mg)21(Si,Al)32O80(O,OH)164-12(H2O)
Arsenogoyazite2.69 %(Sr,Ca,Ba)Al3(AsO4,PO4)2(OH,F)5(H2O)
IMA2000-0462.41 %(Na,H3O,K,Sr,Ba)2(Ti,Nb)2[Si4O12](OH,O)23H2O
Arsenoflorencite-(Nd)2.25 %(Nd,La,Ce,Ba)(Al,Fe+++)3(AsO4,PO4)2(OH)6
Asselbornite2.13 %(Pb,Ba)(UO2)6(BiO)4(AsO4)2(OH)123(H2O)
Vuoriyarvite-K2.10 %(K,Na)2(Nb,Ti)2Si4O12(O,OH)24(H2O)
Merlinoite2.09 %(K,Ca,Na,Ba)7Si23Al9O6423(H2O)
Calciouranoite2.06 %(Ca,Ba,Pb)U2O75(H2O)
Strontiowhitlockite1.97 %Sr7(Mg,Ca)3(PO4)6[PO3(OH)]
IMA2001-0231.97 %(Ca,K,Na,Sr,Ba)48[(Ti,Nb,Fe,Mn)12(OH)12Si48O144](F,OH,Cl)14
Tamaite1.85 %(Ca,K,Ba,Na)3-4Mn24(Si,Al)40(O,OH)11221(H2O)
Tschortnerite1.68 %Ca4(Ca,Sr,K,Ba)3Cu3(OH)8[Si12Al12O48]x(H2O), x>=20
Samuelsonite1.66 %(Ca,Ba)Ca8(Fe++,Mn)4Al2(PO4)10(OH)2
Yimengite1.64 %K(Cr,Ti,Fe,Mg)12O19
Crichtonite1.54 %(Sr,La,Ce,Y)(Ti,Fe+++,Mn)21O38
Coronadite1.47 %Pb(Mn++++,Mn++)8O16
Vinogradovite1.41 %(Na,K)4Ti4(Si,Al)8O263(H2O,Na)
Bellbergite1.28 %(K,Ba,Sr)2Sr2Ca2(Ca,Na)4Al18Si18O7230(H2O)
Lennilenapeite1.14 %K6-7(Mg,Mn,Fe++,Fe+++,Zn)48(Si,Al)72(O,OH)21616(H2O)
Jarlite0.99 %Na(Sr,Na,[ ])7(Mg,[ ])Al6F32(OH,H2O)2
Paulingite0.76 %(K2,Ca,Na2,Ba)5Al10Si35O9045(H2O)
Paulingite-Ca0.40 %(Ca,K,Na,Ba)5[Al10Si35O84]34(H2O)
Paulingite-Na0.37 %(Na2,K2,Ca,Ba)5Al10Si35O9045(H2O)
Paulingite-K0.36 %(K2,Ca,Na2,Ba)5Al10Si35O9045(H2O)