| TOUR 1 | TOUR 2 | TOUR 3 | TOUR 4 | TOUR 5 | TOUR 6 |
SiO2 | 34.51 | 34.29 | 35.10 | 35.41 | 34.68 | 35.39 |
TiO2 | 0.05 | 0.37 | 0.45 | 0.30 | 0.27 | 0.19 |
Al2O3 | 39.24 | 39.84 | 37.99 | 37.99 | 39.22 | 39.17 |
FeO | 7.41 | 8.85 | 6.39 | 5.32 | 6.10 | 5.82 |
MnO | 0.00 | 0.08 | 0.05 | 0.04 | 0.07 | 0.00 |
MgO | 5.58 | 4.48 | 6.10 | 7.16 | 6.11 | 6.11 |
CaO | 0.39 | 0.89 | 1.13 | 0.96 | 1.01 | 0.93 |
Na2O | 1.37 | 1.21 | 1.34 | 0.95 | 1.27 | 1.45 |
K2O | 0.05 | 0.03 | 0.05 | 0.03 | 0.05 | 0.05 |
P2O5 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Total | 88.59 | 90.04 | 88.59 | 88.16 | 88.78 | 89.11 |
Wt% |
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Si | 46.99 | 47.05 | 46.99 | 47.14 | 46.79 | 46.93 |
Ti | 0.02 | 0.00 | 0.00 | 0.05 | 0.03 | 0.00 |
Al | 0.00 | 0.00 | 0.01 | 0.00 | 0.01 | 0.00 |
Fe | 0.01 | 0.00 | 0.00 | 0.02 | 0.03 | 0.00 |
Mn | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.00 |
Mg | 0.01 | 0.01 | 0.03 | 0.01 | 0.01 | 0.00 |
Ca | 0.01 | 0.01 | 0.00 | 0.00 | 0.01 | 0.00 |
Na | 0.03 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 |
K | 0.07 | 0.02 | 0.00 | 0.03 | 0.01 | 0.04316 |
Oxygens | 2.57 | 2.59 | 2.58 | 2.59 | 2.59 | 2.61 |
F | 12.04 | 11.95 | 12.01 | 11.97 | 11.96 | 11.88 |
Cation numbers based on 30 oxygen atoms | ||||||
Si | 6.91 | 6.82 | 7.02 | 7.06 | 6.90 | 6.99 |
Ti | 0.01 | 0.05 | 0.07 | 0.04 | 0.04 | 0.03 |
Al | 9.26 | 9.34 | 8.95 | 8.92 | 9.20 | 9.13 |
Fe | 1.24 | 1.47 | 1.07 | 0.89 | 1.02 | 0.96 |
Mn | 0.00 | 0.01 | 0.01 | 0.01 | 0.01 | 0.00 |
Mg | 1.67 | 1.33 | 1.82 | 2.13 | 1.81 | 1.80 |
Ca | 0.08 | 0.19 | 0.24 | 0.20 | 0.22 | 0.19 |
Na | 0.53 | 0.47 | 0.52 | 0.37 | 0.49 | 0.56 |
K | 0.01 | 0.01 | 0.02 | 0.01 | 0.01 | 0.01 |
Total | 19.72 | 19.69 | 19.72 | 19.63 | 19.71 | 19.69 |
X site | 0.63 | 0.67 | 0.78 | 0.58 | 0.72 | 0.77 |
Y site | 2.91 | 2.87 | 2.96 | 3.06 | 2.88 | 2.79 |
Z site |
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T site | 8.44 | 9.44 | 10.44 | 11.44 | 12.44 | 13.44 |