Magnesium (Mg) Minerals sorted by Descending Weight Percent
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| % Mg | Mineral Name | Chemical Formula | MW |
| 5.84 % Mg | Fluoro-alumino-magnesiotaramite ! | Na(CaNa)(Mg3Al2)(Si6Al2)O22F2 | 882.71 |
| 5.82 % Mg | Amakinite | (Fe++,Mg)(OH)2 | 83.46 |
| 5.82 % Mg | Joesmithite | PbCa2(Mg,Fe++,Fe+++)5Si6Be2O22(OH)2 | 1,043.42 |
| 5.81 % Mg | Talmessite | Ca2Mg(AsO4)2·2(H2O) | 418.33 |
| 5.80 % Mg | Fuenzalidaite | K6(Na,K)4Na6Mg10(SO4)12(IO3)12·12(H2O) | 4,191.42 |
| 5.80 % Mg | Qingheiite | Na2(Mn++,Mg,Fe++)(Al,Fe+++)(PO4)3 | 461.08 |
| 5.76 % Mg | Chromceladonite ! | KCrMg(Si4O10)(OH)2 | 421.75 |
| 5.74 % Mg | Leakeite | NaNa2(Mg2Fe+++2Li)Si8O22(OH)2 | 846.90 |
| 5.72 % Mg | Chamosite # | (Fe++,Mg,Fe+++)5Al(Si3Al)O10(OH,O)8 | 637.20 |
| 5.69 % Mg | Fluoro-sodic-pedrizite ! | NaLi2(Mg2Al2Li)S5Si8O22F2 | 777.04 |
| 5.66 % Mg | Odinite | (Fe+++,Mg,Al,Fe++,Ti,Mn)2.5(Si,Al)2O5(OH)4 | 300.61 |
| 5.64 % Mg | Aldermanite | Mg5Al12(PO4)8(OH)22·32(H2O) | 2,155.72 |
| 5.64 % Mg | Uvite ! | (Ca,Na)(Mg,Fe++)3Al5Mg(BO3)3Si6O18(OH,F)4 | 970.23 |
| 5.49 % Mg | Potassic-magnesiohastingsite ! | (K,Na)Ca2(Mg,Fe++,Fe+++,Al)5(Si,Al)8O22(OH,Cl)2 | 925.11 |
| 5.49 % Mg | Orthochamosite ! | (Fe++,Mg,Fe+++)5Al(Si3Al)O10(OH,O)8 | 664.18 |
| 5.49 % Mg | Potassic-chloropargasite ! | (K,Na)Ca2(Mg,Fe2+)4Al(Si6Al2O22)(Cl,OH)2 | 930.36 |
| 5.48 % Mg | Carlosruizite | K6(Na,K)4Na6Mg10(Se++++++O4)12(IO3)12·12(H2O) | 4,438.69 |
| 5.46 % Mg | Mantienneite | KMg2Al2Ti(PO4)4(OH)3·15(H2O) | 890.69 |
| 5.46 % Mg | Ludlamite # | (Fe++,Mg,Mn)3(PO4)2·4(H2O) | 400.88 |
| 5.45 % Mg | Gordonite # | MgAl2(PO4)2(OH)2·8(H2O) | 446.35 |
| 5.44 % Mg | Dorrite | Ca2Mg2Fe+++4(Al,Fe+++)4Si2O20 | 893.97 |
| 5.43 % Mg | Rinmanite ! | (Zn,Mn)2Sb2Mg2Fe4O14(OH)2 | 894.42 |
| 5.39 % Mg | Collinsite # | Ca2(Mg,Fe++)(PO4)2·2(H2O) | 338.32 |
| 5.37 % Mg | Iddingsite ? | MgO.Fe2O3.3SiO2·4(H2O) | 452.31 |
| 5.37 % Mg | Alpersite ! | (Mg,Cu)SO4·7H2O | 262.74 |
| 5.35 % Mg | Magnesioriebeckite # | [ ]Na2[(Mg,Fe++)3Fe+++2]Si8O22(OH)2 | 876.08 |
| 5.35 % Mg | Carboborite | Ca2Mg(CO3)2B2(OH)8·4(H2O) | 454.22 |
| 5.33 % Mg | Aegirine-augite * | (Ca,Na)(Mg,Fe++,Fe+++)[Si2O6] | 228.05 |
| 5.24 % Mg | Sodic-ferripedrizite ! | Na(LiNa)(Fe+++2Mg2Li)Si8O22(OH,F)2 | 811.31 |
| 5.19 % Mg | Tatarskite | Ca6Mg2(SO4)2(CO3)2Cl4(OH)4·7(H2O) | 937.17 |
| 5.16 % Mg | Pumpellyite-(Mg) # | Ca2MgAl2(SiO4)(Si2O7)(OH)2·(H2O) | 470.70 |
| 5.15 % Mg | Columbite-(Mg) | (Mg,Fe++,Mn)(Nb,Ta)2O6 | 330.49 |
| 5.14 % Mg | Atencioite ! | Ca2Fe++[ ]Mg2Fe++2Be4(PO4)6(OH)4·6H2O | 1,060.05 |
| 5.13 % Mg | Fluoro-potassichastingsite ! | KCa2(Fe++2,Mg2,Fe+++)S5(Si6Al2)8O22F2 | 947.86 |
| 5.12 % Mg | Dellaventuraite ! | NaNa2(Mg2,Mn+++,Li,Ti)Si8O22O2 | 859.87 |
| 5.05 % Mg | Leisingite ! | Cu(Mg,Cu,Fe,Zn)2Te++++++O6·6(H2O) | 481.14 |
| 5.04 % Mg | Vanadiumdravite ! | NaMg3V6(Si6O18)(BO3)3(OH)4 | 1,109.10 |
| 4.99 % Mg | Tosudite | Na0,5(Al,Mg)6(Si,Al)8O18(OH)12·5(H2O) | 973.76 |
| 4.97 % Mg | Hematolite # | (Mn,Mg,Al)15(AsO3)(AsO4)2(OH)23 | 1,468.19 |
| 4.93 % Mg | Kanoite | (Mn++,Mg)2Si2O6 | 246.73 |
| 4.92 % Mg | Zhemchuzhnikovite | NaMg(Al,Fe+++)(C2O4)3·8(H2O) | 494.00 |
| 4.91 % Mg | Rabbittite # | Ca3Mg3(UO2)2(CO3)6(OH)4·18(H2O) | 1,485.56 |
| 4.90 % Mg | Mongshanite * | (Mg,Cr,Fe++)2(Ti,Zr)5O12 | 595.20 |
| 4.90 % Mg | Clinoferrosilite # | (Fe++,Mg)2Si2O6 | 248.09 |
| 4.87 % Mg | Maghagendorfite | NaMgMn(Fe++,Fe+++)2(PO4)3 | 498.84 |
| 4.84 % Mg | Angastonite ! | CaMgAl2(PO4)2(OH)4?7H2O | 502.43 |
| 4.83 % Mg | Inderborite # | CaMg[B3O3(OH)5]2·6(H2O) | 503.40 |
| 4.82 % Mg | Ushkovite | MgFe+++2(PO4)2(OH)2·8(H2O) | 504.08 |
| 4.80 % Mg | Boldyrevite ? | NaCaMgAl3F14·4(H2O) | 506.36 |
| 4.79 % Mg | Magnesionigerite-2N1S | (Mg,Zn,Fe+++,Al)4(Sn,Fe+++)2Al10O22(OH)2 | 964.03 |
| 4.79 % Mg | Magnesionigerite-6N6S ! | (Mg,Zn,Fe+++,Al)4(Sn,Fe+++)2Al10O22(OH)2 | 964.03 |
| 4.78 % Mg | Britvinite ! | Pb7+xMg4.5[(Si,Al)5O14](BO3)(BO3,AsO4)(CO3)(OH,O)7 ( x < 0.5) | 4,587.29 |
| 4.78 % Mg | Ericaite # | (Fe++,Mg,Mn)3B7O13Cl | 458.00 |
| 4.78 % Mg | Congolite | (Fe++,Mg,Mn)3B7O13Cl | 458.00 |
| 4.76 % Mg | Shirozulite ! | KMn3(AlSi3)O10(OH,F)2 | 480.43 |
| 4.75 % Mg | Hydrougrandite ? | (Ca,Mg,Fe++)3(Fe+++,Al)2(SiO4)3-x(OH)4x | 460.23 |
| 4.75 % Mg | Keilite ! | (Fe,Mn,Mg,Ca,Cr)S | 81.91 |
| 4.72 % Mg | Svyazhinite | MgAl(SO4)2F·14(H2O) | 514.63 |
| 4.70 % Mg | Cabalzarite ! | Ca(Mg,Al,Fe++)2(AsO4)2(H2O,OH)2 | 413.71 |
| 4.70 % Mg | Magnesiostaurolite ! | [ ]4Mg4Al16(Al,[ ])2Si8O40[O6,(OH)2] | 1,562.60 |
| 4.69 % Mg | Fougerite ! | (Fe++,Mg)6Fe+++2(OH)18·4(H2O) | 777.66 |
| 4.68 % Mg | Johninnesite | Na2Mg4Mn++12(AsO4)2(Si12O35)(OH)6 | 2,079.34 |
| 4.67 % Mg | Stepanovite # | NaMgFe+++(C2O4)3·8-9(H2O) | 520.33 |
| 4.62 % Mg | Ferrokinoshitalite ! | (Ba,K)(Fe++,Mg)3(Si2Al2)O10 (OH,F)2 | 526.29 |
| 4.60 % Mg | Volkonskoite # | Ca0.3(Cr+++,Mg,Fe+++)2(Si,Al)4O10(OH)2·4(H2O) | 475.69 |
| 4.59 % Mg | Fluorarrojadite-(BaFe) ! | (Ba,K,Pb)Na3(Ca,Sr)(Fe++,Mg,Mn)14Al(PO4)11(PO3OH)(F,OH)2 | 2,116.63 |
| 4.57 % Mg | Sverigeite | NaMnMgSn++++Be2Si3O12(OH) | 532.22 |
| 4.55 % Mg | Maghrebite ! | MgAl2(AsO4)2(OH)2·8H2O | 534.24 |
| 4.53 % Mg | Celadonite # | K(Mg,Fe++)(Fe+++,Al)[Si4O10](OH)2 | 429.02 |
| 4.51 % Mg | Axinite-(Mg) | Ca2MgAl2BO3Si4O12(OH) | 538.57 |
| 4.51 % Mg | Aluminoceladonite ! | KAl(Mg,Fe++)[ ]Si4O10(OH)2 | 404.62 |
| 4.48 % Mg | Paralabuntsovite-Mg ! | Na8K8Mg8Ti16(Si4O12)8(O,OH)16· n(H2O) | 4,336.11 |
| 4.46 % Mg | Dissakisite-(Ce) ! | Ca(Ce,REE)(Mg,Fe++)(Al,Fe+++)2Si3O12(OH) | 599.36 |
| 4.45 % Mg | Borcarite | Ca4MgB4O6(OH)6(CO3)2 | 545.92 |
| 4.45 % Mg | Vanthoffite # | Na6Mg(SO4)4 | 546.50 |
| 4.44 % Mg | Potassicleakeite ! | KNa2Mg2Fe+++2LiSi8O22(OH)2 | 876.72 |
| 4.43 % Mg | Seelite-2 | Mg(UO2)(AsO3)x(AsO4)1-x·7(H2O) (x=0.7) | 548.16 |
| 4.42 % Mg | Ferroholmquistite | [ ](Li2Fe++3Al2)Si8O22(OH)2 | 808.43 |
| 4.41 % Mg | Aluminotaramite ! | Na(CaNa)(Fe+++3Al2)(Si6Al2)O22(OH)2 | 893.08 |
| 4.33 % Mg | Augite # | (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6 | 224.47 |
| 4.31 % Mg | Ferripedrizite ! | NaLi2(Fe+++2Mg2Li)Si8O22(OH)2 | 839.32 |
| 4.28 % Mg | Humberstonite | K3Na7Mg2(SO4)6(NO3)2·6(H2O) | 1,135.32 |
| 4.27 % Mg | Wendwilsonite | Ca2(Mg,Co)(AsO4)2·2(H2O) | 426.99 |
| 4.25 % Mg | Arrojadite-(SrFe) ! | SrFe++Na2Ca(Fe++,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 | 2,063.97 |
| 4.25 % Mg | Magnesiodumortierite | (Mg,Ti,[ ])<1(Al,Mg)2Al4Si3O18-y(OH)yB y=2-3 | 572.14 |
| 4.24 % Mg | IMA2009-009 | KNa2Li(Mg,Fe)2Ti2Si8O24 | 860.83 |
| 4.21 % Mg | Lennilenapeite | K6-7(Mg,Mn,Fe++,Fe+++,Zn)48(Si,Al)72(O,OH)216·16(H2O) | 8,425.53 |
| 4.20 % Mg | Sclarite | (Zn,Mg,Mn++)4Zn3(CO3)2(OH)10 | 694.34 |
| 4.14 % Mg | Wilcoxite | MgAl(SO4)2F·18(H2O) | 586.69 |
| 4.12 % Mg | Ferriwhittakerite ! | Na(NaLi)(Mg2Fe+++2Li)Si8O22(OH)2 | 867.82 |
| 4.11 % Mg | Parwanite | (Na,K)(Mg,Ca)4Al8(PO4)8(CO3)(OH)7·30H2O | 1,775.14 |
| 4.06 % Mg | Yimengite | K(Cr,Ti,Fe,Mg)12O19 | 837.35 |
| 4.03 % Mg | Polyhalite # | K2Ca2Mg(SO4)4·2(H2O) | 602.94 |
| 4.00 % Mg | Brammallite * | (Na,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2,(H2O)] | 364.88 |
| 3.99 % Mg | Willemseite | (Ni,Mg)3Si4O10(OH)2 | 456.63 |
| 3.99 % Mg | Wiluite ! | Ca19(Al,Mg,Fe,Ti)13(B,Al,[ ])5Si18O68(O,OH)10 | 2,924.83 |
| 3.98 % Mg | Yakhontovite | (Ca,K)0.5(Cu,Fe+++,Mg)2Si4O10(OH)2·3(H2O) | 427.29 |
| 3.92 % Mg | Ferrosaponite ! | Ca0.3(Fe++,Mg,Fe+++)3(Si,Al)4O10(OH)2·4(H2O) | 526.49 |
| 3.91 % Mg | Seelite-1 | Mg[(UO2)(AsO3)x(AsO4)1-x]2·7(H2O) | 620.82 |
| 3.91 % Mg | Sadanagaite | (K,Na)Ca2(Fe++,Mg,Al,Ti)5[(Si,Al)8O22](OH)2 | 931.99 |
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