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Table 5 Selected minerals and their thermodynamic data

From: Differential alteration of basaltic lava flows and hyaloclastites in Icelandic hydrothermal systems

Mineral Formula ∆G f° (J/mol) S° (J/mol/K) a (J/mol/K) b (J/mol/K) c (J/mol/K) V° (J/bar) Reference
Albite Na(AlSi3)O8 −3708313 207.15 342.59 0.0149 −2.10E + 07 10.025 S98
Low-albite Na(AlSi3)O8 −3708313 207.15 258.15 0.0582 −6.28E + 06 10.007 S98
Analcime NaAlSi2O6(H2O) −3078890 231.97 132.50 0.2555 −2.13E − 05 9.710 Neuhoff (2000)
Anhydrite CaSO4 −1321830 106.69 70.21 0.0987 0.00E + 00 4.594 S98
Anorthite Ca(Al2Si2)O8 −3991862 205.43 264.89 0.0619 −6.46E + 06 10.079 S98
Boehmite AlO(OH) −908974 48.45 60.40 0.0176 0.00E + 00 1.954 S98
Calcite CaCO3 −1128810 92.50 104.90 0.0050 −9.51E − 05 3.693 Holland and Powell (1998)
Ca-chabazite Ca(Al2Si4)O12(H2O)6 −7156380 584.23 564.18 0.9033 −1.59E + 02 24.745 Neuhoff (2000)
Na-chabazite Na2(Al2Si4)O12(H2O)6 −7115170 619.51 591.72 0.9192 −1.59E + 02 24.745 Neuhoff (2000)
Chalcedony SiO2 −854691 41.34 46.94 0.0343 −1.13E + 06 2.269 S98
Clinochlore-14A Mg5Al(AlSi3)O10(OH)8 −8263350 410.50 1161.80 0.0101 −7.66E − 04 20.710 Holland and Powell (1998)
Daphnite-14A Fe5Al(AlSi3)O10(OH)8 −6535560 545.00 1237.40 0.0014 −3.74E − 04 21.342 Holland and Powell (1998)
Diaspore AlO(OH) −913794 35.27 60.40 0.0176 0.00E + 00 1.776 S98
Diospside CaMg(SiO3)2 −3028296 143.09 221.21 0.0328 −6.59E + 06 6.609 S98
Dolomite CaMg(CO3)2 −2161510 156.00 305.89 −0.0049 0.00E + 00 6.439 Holland and Powell (1998)
Enstatite MgSiO3 −1459923 67.78 102.72 0.0198 −2.63E + 06 3.128 S98
Epidote Ca2Fe|3|Al2Si3O12(OH) −6070591 314.97 492.13 0.0536 −1.33E + 07 13.920 S98
Fayalite Fe2SiO4 −1381695 148.32 152.76 0.0392 −2.80E + 06 4.639 S98
Ferrous oxide FeO −251446 60.75 50.72 0.0087 −3.14E + 05 1.200 S98
Forsterite Mg2SiO4 −2056704 95.19 149.83 0.0274 −3.56E + 06 4.379 S98
Gibbsite Al(OH)3 −1155487 70.08 36.19 0.1908 0.00E + 00 3.196 S98
Grossular Ca3Al2Si3O12 −6260549 254.68 435.21 0.0712 −1.14E + 07 12.530 S98
Gypsum CaSO4(H2O)2 −1797763 193.80 91.38 0.3180 0.00E + 00 7.469 S98
Halite NaCl −384120 72.13 45.94 0.0163 0.00E + 00 2.702 S98
Hedenbergite CaFe(SiO3)2 −2673568 170.29 229.33 0.0342 −6.28E + 06 6.827 S98
Ca-heulandite Ca(Al2Si7)O18(H2O)6 −9,726,320 732.67 742.54 0.0632 −1.43E − 03 31.927 Neuhoff (2000)
Na-heulandite Na2(Al2Si7)O18(H2O)6 −9371886 736.39 722.37 0.0631 −1.40E − 03 31.943 Neuhoff (2000)
Hydromagnesite Mg5(OH)2(CO3)4(H2O)4 −5864658 541.33 591.87 0.2731 −9.07E + 06 20.880 S98
K-feldspar K(AlSi3)O8 −3746245 213.93 320.57 0.0180 −1.25E + 07 10.887 S98
Kaolinite Al2Si2O5(OH)4 −3801720 203.70 436.70 −0.0034 −4.06E − 05 9.952 Holland and Powell (1998)
Laumontite Ca(Al2Si4)O12(H2O)4.5 −6800520 483.91 582.22 0.1448 −8.99E − 04 20.755 Neuhoff (2000)
Magnesite MgCO3 −1027740 65.10 186.40 0.0000 0.00E + 00 2.802 Holland and Powell (1998)
Magnetite FeFe|3|2O4 −1014930 145.73 91.55 0.2017 0.00E + 00 4.452 S98
Marcassite FeS|0|S|-2| −153335 36.82 74.81 0.0055 −1.28E + 06 2.394 Gronvold (1976)
Pargasite Na(Ca2Mg4Al) (Al2Si6)O22(OH)2 −11910710 669.44 861.07 0.1743 −2.10E + 07 27.350 S98
Fe-pargasite Na(Ca2Fe4Al) (Al2Si6)O22(OH)2 −10569566 776.13 893.58 0.1799 −1.98E + 07 27.990 S98
Prehnite Ca2Al2Si3O10(OH)2 −5816166 271.96 383.25 0.1582 −8.20E + 06 14.033 S98
Pyrite FeS|0|S|-2| −160218 52.93 74.81 0.0055 −1.28E + 06 2.394 S98
Pyrrhotite FeS|-2| −100767 60.29 72.80 0.0000 0.00E + 00 1.820 S98
Quartz SiO2 −856239 41.34 46.94 0.0343 −1.13E + 06 2.269 S98
Ca-Fe_saponite Ca0.19Fe|2|2.62Al0.38Si3.24Al0.76O10(OH)2 −4777570 429.68 355.41 0.2305 −7.00E + 06 17.925 This study
Ca-Mg_saponite Ca0.19 Mg2.62Al0.38Si3.24Al0.76O10(OH)2 −5676610 335.99 352.40 0.2199 −8.00E + 06 17.925 This study
Na-Fe_saponite Na0.38Fe|2|2.62Al0.38Si3.24Al0.76O10(OH)2 −4773700 435.46 358.06 0.2346 −7.00E + 06 17.925 This study
Na-Mg_saponite Na0.38 Mg2.62Al0.38Si3.24Al0.76O10(OH)2 −5674020 346.04 355.05 0.2240 −8.00E + 06 17.925 This study
SiO2-amorphous SiO2 −848900 60.00 24.81 0.1975 −9.53E + 06 2.900 S98
Siderite FeCO3 −679540 105.02 48.66 0.1121 0.00E + 00 2.938 S98
Sulfur S|0| 0 31.80 14.98 0.0261 0.00E + 00 1.561 S98
Wairakite Ca(Al2Si4)O12(H2O)2 −6181576 439.74 420.07 0.1861 −6.87E + 06 18.687 S98
Wollastonite CaSiO3 −1544837 82.01 111.46 0.0151 −2.73E + 06 3.993 S98
  1. Thermodynamic parameters of saponites were calculated using the method of Vieillard (2007)
  2. ∆G f ° is the standard Gibbs energy of formation, S° is the standard absolute entropy, V° is the molar volume, all taken per mole at 1 bar 25 C; a, b, and c are the empirical coefficients of the heat capacity function Cp o(T) = a + bT + c/T. S98 refers to the SUPCRT98 database (Shock et al. 1997)