Amphiboles | Tremolite | ||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 1 | 2 | |
SiO2 | 42.67 | 40.33 | 41.49 | 40.65 | 42.47 | 54.38 | 50.75 | 56.55 | 56.48 |
TiO2 | 1.82 | 1.95 | 1.91 | 1.84 | 1.61 | 0.04 | 0.16 | 0.01 | - |
Al2O3 | 11.41 | 10.55 | 12.21 | 12.62 | 11.57 | 1.42 | 3.49 | 0.29 | 0.67 |
FeO | 11.95 | 12.51 | 13.34 | 14.18 | 13.62 | 13.27 | 15.23 | 8.42 | 8.03 |
MnO | 0.19 | 0.24 | 0.23 | 0.22 | 0.18 | 0.52 | 1.01 | 0.13 | 0.14 |
MgO | 13.39 | 11.86 | 12.73 | 11.53 | 12.53 | 14.74 | 12.83 | 18.50 | 18.55 |
CaO | 11.73 | 13.71 | 11.66 | 11.67 | 11.49 | 12.35 | 11.90 | 13.05 | 13.28 |
Na2O | 2.13 | 2.05 | 2.10 | 2.16 | 2.11 | 0.39 | 0.73 | 0.11 | 0.11 |
K2O | 0.98 | 0.75 | 1.02 | 1.11 | 0.66 | 0.07 | 0.26 | 0.06 | 0.04 |
Cr2O3 | 0.004 | 0.01 | - | 0.03 | - | 0.08 | 0.02 | - | 0.45 |
Total | 97.25 | 94.73 | 96.93 | 96.29 | 96.32 | 97.33 | 96.41 | 97.15 | 97.85 |
Si | 6.33 | 6.28 | 6.15 | 6.13 | 6.31 | 7.88 | 7.52 | 8.00 | 7.93 |
Cr | - | - | - | - | - | 0.01 | - | - | 0.05 |
Fe3+ | 0.40 | - | 0.62 | 0.45 | 0.60 | 0.02 | 0.27 | - | - |
Fe2+ | 1.07 | 1.62 | 1.02 | 1.33 | 1.08 | 1.58 | 1.61 | 0.99 | 0.94 |
Mn | 0.02 | 0.03 | 0.03 | 0.03 | 0.02 | 0.06 | 0.12 | 0.01 | 0.01 |
Mg | 2.96 | 2.75 | 2.81 | 2.59 | 2.77 | 3.18 | 2.83 | 3.90 | 3.88 |
Ca | 1.86 | 2.28 | 1.85 | 1.88 | 1.82 | 1.91 | 1.88 | 1.97 | 2.00 |
Na | 0.61 | 0.61 | 0.60 | 0.63 | 0.61 | 0.11 | 0.21 | 0.03 | 0.03 |
K | 0.18 | 0.15 | 0.19 | 0.21 | 0.13 | 0.01 | 0.05 | 0.01 | 0.01 |
(Ca + Na) (B) | 2 | 2.28 | 2 | 2 | 2 | 2 | 2 | 2 | 2.00 |
Na (B) | 0.13 | - | 0.14 | 0.11 | 0.17 | 0.08 | 0.11 | 0.02 | - |
(Na + K) (A) | 0.66 | 0.76 | 0.65 | 0.73 | 0.56 | 0.04 | 0.15 | 0.02 | 0.03 |
Mg/(Mg + Fe2) | 0.73 | 0.63 | 0.73 | 0.67 | 0.71 | 0.66 | 0.64 | 0.79 | 0.80 |