Efrén Pérez Segura - Centro de Geociencias ::.. UNAM

Garnet
sample 03951-6 03951-7 03951-8 03951-9 03951-10
SiO2 34.80 35.91 39.08 38.47 42.21
TiO2 0.02 0.06 0.44 0.68 0.66
ZrO2 0.00 0.00 0.00 0.00 0.00
Al2O3 0.43 0.06 10.86 13.74 12.04
Cr2O3 0.00 0.01 0.02 0.00 0.01
Fe2O3 calc. 31.16 30.42 14.18 12.14 3.87
Y203 0.00 0.00 0.00 0.00 0.00
V2O3 0.00 0.00 0.00 0.00 0.00
FeO calc. 0.00 0.03 1.03 0.35 5.70
MnO 0.17 0.22 0.23 0.25 0.29
MgO 0.00 0.05 0.17 0.26 0.31
CaO 33.15 33.27 35.46 35.39 34.69
Total 99.73 100.02 101.47 101.28 99.78
Si 2.957 3.029 3.062 2.990 3.298
Al iv 0.043 0.000 0.000 0.010 0.000
somme 3.000 3.029 3.062 3.000 3.298
Al vi 0.000 0.006 1.003 1.248 1.108
Ti 0.001 0.002 0.017 0.026 0.034
Cr 0.000 0.000 0.001 0.000 0.000
Fe3+ 1.993 1.931 0.836 0.710 0.227
somme 1.994 1.940 1.858 1.984 1.370
Fe2+ 0.000 0.002 0.067 0.023 0.372
Mn 0.012 0.016 0.015 0.017 0.019
Mg 0.000 0.006 0.020 0.030 0.036
Ca 3.018 3.008 2.977 2.946 2.904
somme 3.030 3.031 3.080 3.016 3.332
Total 8.024 8.000 8.000 8.000 8.000
Pyrope 0.0 0.3 0.6 1.0 1.1
Almandin 0.0 0.1 2.2 0.8 11.2
Spessartine 0.6 0.8 0.5 0.6 0.6
Andradite 99.4 98.8 45.0 35.8 16.6
Uvarovite 0.0 0.0 0.1 0.0 0.0
Grossulaire 0.0 0.0 51.6 61.9 70.5
100.0 100.0 100.0 100.0 100.0