Table 5 EDX analysis of the separated radioactive minerals from some altered granites and silica veins at El-Missikat and El-Erediya exploratory tunnels
Elements % | Thorite | Betafite | Zircon | Coffinite | Uranophane | Kasolite | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
A | B | C | D | E | F | G | H | I | J | K | |
SiO2 | 34.82 | 28.30 | – | – | 45.9 | 42.2 | 25.2 | 23.8 | 38.9 | 53.92 | 43.88 |
UO2 | 8.55 | 10.90 | 36.9 | 28.7 | 4.2 | 3.4 | 65.8 | 67.2 | 53.7 | 33.73 | 30.03 |
ThO2 | 42.29 | 49.12 | 1.22 | 2.4 | 1.07 | 1.3 | – | – | – | – | – |
Al2O3 | 2.77 | 1.97 | 5.77 | 3.45 | 7.30 | 6.2 | 0.65 | 0.12 | 3.67 | 5.08 | 4.8 |
TiO2 | – | – | 25.5 | 29.2 | – | – | – | – | – | – | – |
CaO | – | 0.42 | 1.4 | 1.08 | 1.95 | 2.7 | 1.2 | 2.5 | 1.0 | 1.97 | – |
PbO | – | 0.30 | – | 0.10 | – | – | 2.3 | 2.51 | 0.1 | 0.2 | 20.17 |
FeO | 2.98 | 0.25 | 2.35 | 2.16 | 1.58 | – | 0.9 | 1.7 | 1.5 | 4.32 | – |
BaO | – | – | 0.08 | 0.48 | – | – | 0.5 | 0.9 | – | – | – |
ZrO2 | – | – | – | – | 30.9 | 35.5 | – | – | 0.1 | 0.4 | – |
Nd2O3 | – | – | 2.5 | 3.7 | – | – | 0.14 | 0.11 | – | – | – |
Y2O3 | 7.59 | 8.23 | 0.89 | 0.45 | 5.78 | 6.0 | 1.05 | 0.83 | – | – | – |
Ce2O3 | – | – | 1.53 | 2.78 | – | – | 0.29 | 0.28 | – | – | – |
Ta2O5 | – | – | 3.41 | 4.51 | – | – | – | – | – | – | – |
Nb2O5 | – | – | 16.6 | 20.7 | – | – | – | – | – | – | – |
Total | 99.0 | 99.49 | 98.2 | 99.7 | 98.6 | 97.3 | 98.03 | 99.9 | 98.97 | 99.62 | 98.88 |