Table 1 X-ray fluorescence major element oxide analysis of a typical sericite schist (sample 2) and a mineralised sericite schist (sample 7); Lukmanier gorge, after Böhm (1991)
From: Gold mineralisation in the Surselva region, Canton Grisons, Switzerland
Sample no. | 7 | 2 |
|---|---|---|
SiO2 | 63.67 | 70.22 |
TiO2 | 0.75 | 0.38 |
Al2O3 | 16.32 | 16.04 |
Fe2O3 + FeO | 4.29 | 2.47 |
MnO | 0.09 | 0.00 |
MgO | 1.83 | 0.75 |
CaO | 1.80 | 0.26 |
Na2O | 0.08 | 1.71 |
K2O | 5.06 | 5.41 |
P2O5 | 0.20 | 0.23 |
H2O + CO2 | 5.07 | 2.15 |
Cr2O3 | 0.01 | 0.00 |
Total | 99.17 | 99.62 |