The sulfate chlorides are double salts containing both sulfate (SO42–) and chloride (Cl–) anions. They are distinct from the chlorosulfates, which have a chlorine atom attached to the sulfur as the ClSO3− anion.
Many minerals in this family exist. Many are found associated with volcanoes and fumaroles. As minerals they are included in the Nickel-Strunz classification group 7.DG.
The book Hey's Chemical Index of Minerals groups these in subgroup 12.2.
name | formula | ratio | system | space group | unit cell | volume | density | optical | references |
---|---|---|---|---|---|---|---|---|---|
Arzrunite | Cu4Pb2(SO4)(OH)4Cl6 · 2H2O (?) | 1:6 | orthorhombic | Blue Biaxial | [1] | ||||
Connellite | Cu19(SO4)(OH)32Cl4 · 3H2O | 1:4 | hexagonal | P2c | a = 15.78 c = 9.10 | 1,962 | 3.36 | blue Uniaxial (+) nω = 1.724 – 1.746 nε = 1.738 – 1.758 Birefringence: 0.026 | [2] |
Potassium Zinc Sulfate Chloride | K2Zn(SO4)Cl3 ? | 1:3 | |||||||
Chlorothionite | K2Cu(SO4)Cl2 | 1:2 | orthorhombic | Pnma | a = 7.73 b = 6.07 c = 16.29 | 764 | 2.67 | pale blue Biaxial (+) | [3] |
Sundiusite | Pb10(SO4)O8Cl2 | 1:2 | monoclinic | a = 24.67 b = 3.781 c = 11.881 β = 100.07 | 1091.1 | Biaxial (+) nα = 2.100 nγ = 2.170 Max birefringence: δ = 0.070 | [4] | ||
Sodium Potassium Iron Sulfate Chloride | (Na,K)2Fe(SO4)Cl2 | 1:2 | |||||||
Mammothite | Pb6Cu4AlSb5+O2(OH)16Cl4(SO4)2 | 1:2 | monoclinic | C2 | a = 18.959 b = 7.3399 c = 11.363 β = 112.428(9)° Z=2 | 1461.6 | 5.21 | blue-green Biaxial (+) nα = 1.868 nβ = 1.892 nγ = 1.928 2V:measured: 80° Birefringence: 0.060 | [5] |
Zn Sulfate Chloride Hydroxide | Zn3(SO4)(Cl,OH)2 | 1:2 | [6] | ||||||
Tatarskite | Ca6Mg2(SO4)2(CO3)2(OH)4Cl4 · 7H2O | 2:4 | Orthorhombic | 2.431 | Biaxial (-) nα = 1.567 nβ = 1.654 nγ = 1.722 2V: 83° | [7] | |||
Therasiaite | (NH4)3KNa2Fe2+Fe3+(SO4)3Cl5 | 3:5 | monoclinic | a = 18.284, b = 12.073, c = 9.535 Å, β = 108.10°, and Z = 4 | V = 2000.6 Å3 | brown | [8] | ||
Acmonidesite | (NH4,K,Pb)8NaFe2+4(SO4)5Cl8 | 5:8 | orthorhombic | a = 9.841 Å, b = 19.448 Å, c = 17.847 Å Z=4 | 3,415.70 Å3 | [9] | |||
'Ammonium-Kainite' | NH4Mg(SO4)Cl•3H2O | 1:1 | |||||||
Anhydrokainite | KMg(SO4)Cl | 1:1 | [10] | ||||||
Belousovite | KZn(SO4)Cl | 1:1 | monoclinic | P21/c | a = 6.8904 b = 9.6115 c = 8.2144 β = 96.582 Z = 4 | 540.43 | [11] | ||
Gordaite | NaZn4(SO4)(OH)6Cl · 6H2O | 1:1 | trigonal | P | a=8.35 c=13.08 | 802.67 | Uniaxial (-) nω = 1.561 nε = 1.538 Max birefringence: δ = 0.023 | [12] | |
Kainite | KMg(SO4)Cl · 3H2O | 1:1 | monoclinic | a = 19.72 b = 16.23 c = 9.53 β = 94.92° | 3,039 | 2.15 | Biaxial (-) nα = 1.494 nβ = 1.505 nγ = 1.516 2V: measured: 90°, calculated: 88° Max birefringence: δ = 0.022 | [13] | |
Spangolite | Cu6Al(SO4)(OH)12Cl · 3H2O | 1:1 | trigonal | P31c | a = 8.24 c = 14.34 Z=2 | 843.2 | 3.14 | blue-green Uniaxial (-) nω = 1.694 nε = 1.641 Max birefringence: δ = 0.053 | [14] |
Thérèsemagnanite | NaCo4(SO4)(OH)6Cl · 6H2O | 1:1 | trigonal | P | a = 8.349 c = 13.031 | 786.6 | 2.52 | Uniaxial (-) ω=1.792 nε=1.786 Max birefringence: δ = 0.006 | [15] [16] |
Vendidaite | Al2(SO4)(OH)3Cl·6H2O | 1:1 | monoclinic | C2/c | a = 11.925 b = 16.134 c = 7.4573 β = 125.815° | 1163.4 | 1.97 | Biaxial (+) nα = 1.522 nβ = 1.524 nγ = 1.527 2V: calculated: 79° Max birefringence: δ = 0.005 | [17] |
Xitieshanite | Fe3+(SO4)Cl · 6H2O | 1:1 | monoclinic | P21/a | a = 14.102 b = 6.908 c = 10.673 β = 111.26° Z=4 | 968.97 | 1.99 | Biaxial (+) nα = 1.536 nβ = 1.570 nγ = 1.628 2V: measured: 77°, calculated: 78° Max birefringence: δ = 0.092 | [18] |
Zn Sulfate-Hydroxide-Chloride-Hydrate | Zn9(SO4)2(OH)12Cl2 · 6H2O | 2:2 | trigonal | R | a = 8.275 c = 32.000 Z=3 | 1,897.6 | [19] | ||
Gordaite-related Ca-Zn Sulfate Chloride Hydrate | Ca[Zn<sub>8</sub>(SO<sub>4</sub>)<sub>2</sub>(OH)<sub>12</sub>Cl<sub>2</sub>](H2O)9 | 2:2 | trigonal | Rc | a = 8.3797 Å, c = 68.123 Z=6 | 4142.7 | [20] | ||
UM1987-14-SO:ClHZn | Zn12(SO4)3Cl3(OH)15•5H2O | 3:3 | |||||||
Aubertite | CuAl(SO4)2Cl · 14H2O | 2:1 | triclinic | P | a=6.28 b=13.23 c=6.28 α=91.17°, β=94.67°, γ=82.45° | 515.50 | 1.815 | blue Biaxial (-) nα = 1.462 nβ = 1.482 nγ = 1.495 2V: measured: 71°, calculated: 76° Max birefringence: δ = 0.033 | [21] |
Magnesioaubertite | (Mg,Cu)Al(SO4)2Cl · 14H2O | 2:1 | triclinic | P | a = 6.31 b = 13.20 c = 6.29 α = 91.74°, β = 94.55°, γ = 82.62° | 517.8 | Biaxial (-) nα = 1.466 nβ = 1.481 nγ = 1.488 2V: measured: 112° to 114°, calculated: 66° Max birefringence: δ = 0.022 | [22] | |
Kamchatkite | KCu3(SO4)2OCl | 2:1 | orthorhombic | Pnma | a = 9.755 b = 7.015 c = 12.866 | 881.8 | 3.48 | greenish-yellow Biaxial (+) nα = 1.695 nβ = 1.718 nγ = 1.759 2V: measured: 75°, calculated: 76° Max birefringence: δ = 0.064 | [23] |
Aiolosite | Na4Bi(SO4)3Cl | 3:1 | hexagonal | P63/m | a = 9.626 c = 6.880 | 552.1 | 3.589 | Uniaxial (+) nω = 1.590 nε = 1.600 Max birefringence: δ = 0.010 | [24] |
Caracolite | Na3Pb2(SO4)3Cl | 3:1 | monoclinic | P63/m | a = 19.62 b = 7.14 c = 9.81 β = 120° | 1190 | 5.1 | Biaxial (-) nα = 1.743 nβ = 1.754 nγ = 1.764 Max Birefringence: δ = 0.021 | [25] |
D'Ansite | Na21Mg(SO4)10Cl3 | 10:3 | isometric | I3d | a = 15.913 Z = 4 | 4,029.55 | 2.59 | isotropic n=1.488 | [26] |
D'Ansite-(Fe) | Na21Fe2+(SO4)10Cl3 | 10:3 | isometric | I3d | a = 15.882 Z=4 | 4,006.04 | 2.62 | Isotropic n = 1.51 | [27] |
D'Ansite-(Mn) | Na21Mn2+(SO4)10Cl3 | 10:3 | isometric | I3d | a = 15.929 Z=4 | 4,041.79 | 2.610 | Isotropic n = 1.50 | [28] |
Adranosite | (NH4)4NaAl2(SO4)4Cl(OH)2 | 4:1 | tetragonal | I41/acd | a = 18.118, c = 11.320 | 3,715.9 | [29] | ||
Adranosite-(Fe) | (NH4)4NaFe3+2(SO4)4Cl(OH)2 | 4:1 | tetragonal | I41/acd | a = 18.261, c = 11.562 Z=8 | 3855.5 | Uniaxial (-) nω = 1.580 nε = 1.570 Birefringence: δ = 0.010 | [30] | |
Bluelizardite | Na7(UO2)(SO4)4Cl(H2O)2 | 4:1 | monoclinic | C2/c | a = 21.1507 b = 5.3469 c = 34.6711 β = 104.913° Z=8 | 3788.91 | 3.116 | yellow Biaxial (-) nα = 1.515(1) nβ = 1.540(1) nγ = 1.545(1) 2V: measured: 48°, calculated: 47.6° Max birefringence: δ = 0.030 | [31] |
Piypite | K4Cu4O2(SO4)4 · (Na,Cu)Cl | 4:1 | Tetragonal | a = 13.6 c = 4.95 Z=2 | 915.6 | 3.1 | green Uniaxial (+) nω = 1.583 nε = 1.695 Max Birefringence:δ = 0.112 | [32] | |
Atlasovite | K(BiO)Cu6Fe3+(SO4)5O3Cl | 5:1 | tetragonal | P4/ncc | a = 9.86, c = 20.58 | 2,001 | 4.2 | Uniaxial (-) nω = 1.783 nε = 1.776 Birefringence: δ = 0.007 | [33] |
Three or more anions | |||||||||
Marinellite | (Na,K)42Ca6(Al6Si6O24)6(SO4)8Cl2 · 3H2O | 2:8 | Trigonal | P31c | a = 12.88 c = 31.761 | 4563 | 2.405 | Uniaxial (+) nω = 1.495 nε = 1.497 Max birefringence: δ = 0.002 | [34] |
Philolithite | Pb12O6Mn7(SO4)(CO3)4Cl4(OH)12 | 1:4 | Tetragonal | a = 12.627 c = 12.595 Z=2 | 2008.2 | green Biaxial (+) nα = 1.920 nβ = 1.940 nγ = 1.950 Max birefringence: δ = 0.030 | [35] | ||
Symesite | Pb10(SO4)O7Cl4 · H2O | 1:4 | triclinic | P | a = 8.821 b = 10.776 c = 13.134 α = 68.96°, β = 86.52°, γ = 75.65° Z=2 | 1128.4 | 7.3 | pinkBiaxial nα = 2.120 nγ = 2.160 Max birefringence: δ = 0.040 | [36] |
Bobmeyerite | Pb4(Al3Cu)(Si4O12)(S0.5Si0.5O4)(OH)7Cl(H2O)3 | 1:2 | Orthorhombic | Pnnm | a = 13.969 b = 14.24 c = 5.893 Z=2 | 1173.6 | 4.381 | Biaxial (-) nα = 1.756(4) nβ = 1.759(2) nγ = 1.759(2) Max birefringence: δ = 0.003 | [37] |
Microsommite | Na4K2Ca2(Al6Si6O24)(SO4)Cl2 | 1:2 | Hexagonal | a = 22.08 c = 5.33 | 2,250 | Uniaxial (+) nω = 1.521 nε = 1.529Max birefringence: δ = 0.008 | [38] | ||
Mattheddleite | Pb5(SiO4)1.5(SO4)1.5(Cl,OH) | 3:2 | Hexagonal | P63/m | a = 10.0056, c = 7.496 Z=2 | 649.9 | 6.96 | Uniaxial (-) nω = 2.017 nε = 1.999 Birefringence: δ = 0.018 | [39] |
Afghanite | (Na,K)22Ca10[Si<sub>24</sub>Al<sub>24</sub>O<sub>96</sub>](SO4)6Cl6 | 6:6 | Trigonal | a = 12.796, c = 21.409 Z = 1 | 3,015.16 | 2.54 | Uniaxial (+) nω = 1.523 nε = 1.529 δ = 0.006 | [40] | |
Alloriite | (Na,Ca,K)26Ca4(Al6Si6O24)4(SO4)6Cl6 | 6:6 | trigonal | P31c | a = 12.892 c = 21.340 Z=4 | 3,071.61 | 2.35 | Uniaxial (+) nω = 1.497(2) nε = 1.499(2)Max birefringence: δ = 0.002 | [41] |
Eztlite | Pb2+2Fe3+3(Te4+ O3)3(SO4)O2Cl | 1:1 | monoclinic | Cm | a = 11.466 b = 19.775 c = 20.52 β = 20.52° Z=2 | 2322.6 | 4.5 | redBiaxial nα = 2.140 nγ = 2.150 Max birefringence: δ = 0.010 | [42] |
Vlodavetsite | AlCa2(SO4)2F2Cl · 4H2O | 1:1 | Tetragonal | I4/m | a = 6.870, c = 13.342 Z=2 | 629.70 | Uniaxial (+) nω = 1.509 nε = 1.526 Birefringence: δ = 0.017 | [43] | |
Liottite | (Na,K)16Ca8(Al6Si6O24)3(SO4)5Cl4 | 5:4 | Hexagonal | a = 12.84 c = 16.09 | 2,297 | Uniaxial (-) nω = 1.530 nε = 1.528Max birefringence: δ = 0.002 | [44] | ||
Chlorellestadite | Ca10(SiO4)3(SO4)3Cl2 | 3:2 | Hexagonal | P63/m | a = 9.6002 c = 6.8692 Z=2 | 548.27 | 3.091 | Uniaxial (-) nω = 1.664 nε = 1.659Max birefringence δ = 0.005 | [45] |
Heidornite | Na2Ca3B5O8(SO4)2Cl(OH)2 | 2:1 | monoclinic | a = 10.19 b = 7.76 c = 18.81 β = 93.33° Z=4 | 1,484.88 | 2.753 | Biaxial (+) nα = 1.579 nβ = 1.588 nγ = 1.6042V: measured: 63° to 77°, calculated: 76° Max birefringence: δ = 0.025 | [46] | |
Mineevite-(Y) | Na25Ba(Y,Gd,Dy)2(CO3)11(HCO3)4(SO4)2F2Cl | 2:1 | hexagonal | P63/m | a = 8.811 c = 37.03 | 2,489.6 | 2.85 | Pale greenUniaxial (-) nω = 1.536 nε = 1.510 Max birefringence: δ = 0.026 | [47] |
Sulphohalite | Na6(SO4)2FCl | 2:1 | Isometric | Fmm | a = 10.065, Z = 4 | 1,019.6 | isotropic n=1.455 | [48] [49] | |
Tounkite | (Na,Ca,K)8(Al6Si6O24)(SO4)2Cl · H2O | 2:1 | hexagonal | a = 12.84 c = 32.23 | 4,602 | Uniaxial (+) nω = 1.528 nε = 1.543 Max birefringence: δ = 0.015 | [50] | ||
Alloriite | Na19K6Ca5[Al<sub>22</sub>Si<sub>26</sub>O<sub>96</sub>](SO4)5Cl(CO3)x(H2O) | 5:1 | trigonal | P31c | a = 12.892 c = 21.340 | [51] | |||
Galeite | Na15(SO4)5F4Cl | 5:1 | trigonal | a = 12.17 c = 13.94 | 1788 | Uniaxial (+) nω = 1.447 nε = 1.449Max birefringence: δ = 0.002 | |||
Nabokoite | KCu7(SO4)5(Te4+O3)OCl | 5:1 | Tetragonal | a = 9.84 Å, c = 20.52 | 1,986.86 | nω = 1.778 nε = 1.773 uniaxial (-) | [52] | ||
Schairerite | Na21(SO4)7ClF6 | 7:1 | Trigonal | a = 12.17 c = 19.29 | 2,474 | 2.612 | Uniaxial (+) nω = 1.440 nε = 1.445Max birefringence: δ = 0.005 | [53] | |
Hanksite | Na22K(SO4)9(CO3)2Cl | 9:1 | Hexagonal | P 63/m | a = 10.4896 c = 21.2415 | 2024.1 | [54] | ||
Sacrofanite | (Na61K19Ca32)(Si84Al84O336)(SO4)26Cl2F6•2H2O | 26:2 | hexagonal | P2c | a = 12.86 c = 72.24 Z=14 | 10,346 | 2.423 | Uniaxial (-) nω = 1.505 nε = 1.486 Max birefringence:δ = 0.019 | [55] |
name | formula | ratioSO4:Cl | system | space group | unit cell | volume | density | optical | references |
---|---|---|---|---|---|---|---|---|---|
'Ammonium-zinc-Kainite' | NH4Zn(SO4)Cl•3H2O | 1:1 | |||||||
nonasodium tetrakis(sulfate) chloride diperhydrate | Na9[SO<sub>4</sub>]4Cl·2H2O2 | 4:1 | tetragonal | P 4/n | MW=694.63 a=29.6829 b=29.6829 c=8.4018 Z=16 | 7402.6 | 2.493 | colourless | [56] |
'zinc-Kainite' | KZn(SO4)Cl•3H2O | 1:1 | n=1.24 | [57] | |||||
Li2RbSO4Cl | 1:1 | orthorhombic | P212121 | a=4.8465 b=8.323 c=14.004 Z=4 | 564.0 | 2.714 | [58] | ||
indium sulfate chloride | In2(SO4)3•InCl3•(17±1)H2O | 3:3 | [59] | ||||||
Na3Ca2(SO4)3Cl | 3:1 | hexagonal | P63/m | [60] | |||||
Na3Ca2(SO4)3Cl | 3:1 | orthorhombic >897K | [61] | ||||||
Na3Cd2(SO4)3Cl | 3:1 | hexagonal | P63/m | ||||||
Na3Cd2(SO4)3Cl | 3:1 | monoclinic >494K | |||||||
K3Ca2(SO4)3Cl | 3:1 | [62] | |||||||
K3Pb2(SO4)3Cl | 3:1 | [63] | |||||||
K4Sb(SO4)3Cl | 3:1 | noncentrosymmetric | non-linear optic high birefringence. | [64] | |||||
Calcium chlorosulfatosilicate | Ca10(SiO4)3(SO4)3Cl2 | 3:2 | hexagonal | a=9.688 c=6.849 | monoaxial,(-), No = 1.665, Ne' = 1.659 | [65] | |||
[Fe<sub>2</sub>Al<sub>4</sub>(OH)<sub>11</sub>](SO4)3Cl | 3:1 | ||||||||
Lithium gordaite | LiZn4(OH)6(SO4)Cl·6H2O | 1:1 | ?c=17.84 | [66] | |||||
K3Sn2(SO4)3Cl | 3:1 | stable to 440 °C | [67] | ||||||
Rb3Sn2(SO4)2Cl3 | 2:3 | monoclinic | C2/m | a=21.153 b=5.1751 c= 6.9327 β =95.844 Z=2 | 754.97 | 3.485 | stable to 350 °C | ||
(NH4)SbCl2(SO4) | 1:2 | orthorhombic | P212121 | a=6.3616 b=7.3110 c=15.827 Z=2 | 736.13 | 2.768 | colourless SHG 1.7×KDP | [68] | |
(NH4)2SbCl(SO4)2 | 2:1 | orthorhombic | Pnma | a=8.6044 b=16.5821 c=7.1007 Z=2 | 1013.1 | 2.527 | colourless | ||
RbSbSO4Cl2 | 1:2 | orthorhombic | P212121 | a=6.3469 b=7.4001 c=15.7798 Z=2 | 741.14 | 3.353 | SHG 2.7×KDP | [69] | |
Cs3Sn2(SO4)2Cl3 | 2:3 | monoclinic | C2/m | a=22.222 b=5.1992 c= 7.2661 β =97.030 Z=2 | 833.17 | 3.725 | stable to 190 °C | ||
gadolinium chloride sulfate | GdClSO4 | 1:1 | monoclinic | P21/c | a = 9.437 6.5759 6.8005 β = 104.87 Z=4 | [70] | |||
KBiCl2SO4 | 1:2 | orthorhombic | P212121 | a= 7.2890 b=6.3673 c=15.3306 Z=4 | 711.51 | 3.875 | band gap 3.95 eV | [71] | |
RbBiCl2SO4 | 1:2 | orthorhombic | P212121 | a= 6.3352 b=7.4450 c=15.5302 Z=4 | 732.49 | 4.184 | colourless NLO SHG | [72] | |
NH4BiCl2SO4 | 1:2 | orthorhombic | P212121 | a=7.3845 b=6.3593 c=15.5636 Z=4 | 730.87 | 3.581 | colourless NLO SHG | ||
bismuth guanidinium dichloride sulfate | [C(NH<sub>2</sub>)<sub>3</sub>]BiCl2SO4 | 1:2 | triclinic | P | a=6.4179 b=12.8984 c=12.9703 α=61.965° β=88.400° γ=76.935° Z=2 | 919.33 | 3.150 | birefringence 0.143@546 nm | [73] |
Tripotassium dibismuth pentachloride dioxide disulfate | K3Bi2Cl5O2(SO4)2 | 2:5 | triclinic | P | a=6.513 b=7.2500 c=10.7916 al=82.500 be=83.742 ga=82.100 | 485.89 | band gap 3.62 eV | [74] | |
K4[(NpO<sub>2</sub>)(SO<sub>4</sub>)<sub>2</sub>]Cl | 2:1 | monoclinic | P2/n | a=10.0873 b=4.5354 c=14.3518 β=103.383 Z=2 | 638.76 | 3.395 | light green | [75] | |
Rb4[(NpO<sub>2</sub>)(SO<sub>4</sub>)<sub>2</sub>]Cl | 2:1 | monoclinic | P2/n | a=10.5375 b=4.6151 c=16.068 β=103.184 Z=2 | 599.33 | 3.982 | light green | ||
complexes | |||||||||
[Pt<sub>2</sub>(SO<sub>4</sub>)<sub>4</sub>Cl(H<sub>2</sub>O)]3- | 4:1 | [76] | |||||||
Hf(SO4)2Cl− | 2:1 | [77] | |||||||
Some "chloride sulfates" are sold as solutions in water and used for water treatment. these include ferric chloride sulfate and polyaluminium sulfate chloride. The solutions may also be called "chlorosulfates" even though they do not contain a chlorosulfate group.