| Samples | 81 (keV) | 356 (keV) | 662 (keV) | 1173 (keV) | 1332 (keV) |
1 | Yellow Iraqi granite | 0.438 ± 0.028 | 0.241 ± 0.012 | 0.206 ± 0.014 | 0.118 ± 0.011 | 0.113 ± 0.012 |
2 | Orange Spanish granite | 0.500 ± 0.0071 | 0.239 ± 0.012 | 0.209 ± 0.013 | 0.012 ± 0.130 | 0.132 ± 0.0112 |
3 | Red Indian granite | 0.450 ± 0.0064 | 0.264 ± 0.020 | 0.198 ± 0.011 | 0.119 ± 0.010 | 0.115 ± 0.012 |
4 | Grey Chinese granite | 0.463 ± 0.017 | 0.238 ± 0.013 | 0.202 ± 0.019 | 0.120 ± 0.017 | 0.110 ± 0.0091 |
5 | Colored Egyptian granite | 0.446 ± 0.0106 | 0.244 ± 0.010 | 0.208 ± 0.014 | 0.129 ± 0.013 | 0.116 ± 0.0099 |
6 | White Turkish granite | 0.387 ± 0.013 | 0.253 ± 0.017 | 0.218 ± 0.0088 | 0.130 ± 0.011 | 0.125 ± 0.020 |
7 | Lead | ----------- | ----------- | 1.04 ± 0.079 | 0.729 ± 0.057 | 0.695 ± 0.095 |