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Table 3
Selected points are representative electron microprobe analysis results of amphibole. Numbers of ions is based on 23 oxygens.
| Samples | TD2 | SLB | SD |
|---|---|---|---|
| Mineral | Fe-edenite | Fe-edenite | Fe-edenite |
| Na2O | 1.72 | 1.62 | 1.71 |
| MgO | 8.41 | 5.67 | 6.69 |
| Al2O3 | 5.42 | 6.53 | 6.46 |
| SiO2 | 46.11 | 43.92 | 43.63 |
| Cl- | 0.33 | 0.35 | 0.31 |
| K2O | 0.58 | 0.80 | 0.69 |
| CaO | 9.76 | 10.19 | 9.94 |
| TiO2 | 1.24 | 1.54 | 1.39 |
| Cr2O3 | 0.00 | 0.02 | 0.03 |
| MnO | 0.270 | 0.260 | 0.330 |
| FeO | 23.14 | 27.24 | 25.47 |
| NiO | 0.05 | 0.05 | 0.00 |
| Total | 97.03 | 98.21 | 96.66 |
| AlIV | 0.85 | 1.092 | 1.085 |
| Si | 7.15 | 6.908 | 6.915 |
| Mg | 1.944 | 1.330 | 1.581 |
| AlVI | 0.141 | 0.119 | 0.122 |
| Ti | 0.145 | 0.182 | 0.166 |
| Cr | 0.000 | 0.002 | 0.004 |
| Na | 0.517 | 0.494 | 0.525 |
| Fe2+ | 3.001 | 3.583 | 3.376 |
| K | 0.115 | 0.161 | 0.140 |
| Ba | 0.000 | 0.001 | 0.001 |
| Cl | 0.087 | 0.093 | 0.083 |
| OH | 1.913 | 1.907 | 1.917 |
| Total | 15.862 | 15.872 | 15.914 |
| CaB | 1.622 | 1.717 | 1.688 |
| Si (c.p.u.f.) | 7.15 | 6.908 | 6.915 |
| (Na+K)A | 0.526 | 0.63 | 0.646 |
| Ti | 0.145 | 0.182 | 0.166 |
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