| Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
|---|---|---|---|---|---|
| Aluminum | Al (wt%) | 6.663 | 1.012 | 2.748 | 9.794 |
| Arsenic | As (ppm) | 14.978 | 22.315 | 2.375 | 312.949 |
| Calcium | Ca (wt%) | 2.389 | 1.323 | 0.358 | 10.640 |
| Copper | Cu (ppm) | 22.967 | 8.763 | 4.139 | 64.127 |
| Iron | Fe (wt%) | 3.150 | 0.629 | 1.333 | 7.098 |
| Mercury | Hg (ppm) | 0.229 | 0.891 | 0.011 | 13.049 |
| Magnesium | Mg (wt%) | 1.281 | 0.568 | 0.154 | 6.337 |
| Manganese | Mn (ppm) | 742.720 | 229.549 | 251.704 | 2616.350 |
| Sodium | Na (wt%) | 1.201 | 0.420 | 0.201 | 2.627 |
| Phosphorus | P (wt%) | 0.109 | 0.020 | 0.012 | 0.213 |
| Lead | Pb (ppm) | 59.945 | 148.343 | 5.813 | 2161.110 |
| Selenium | Se (ppm) | 0.456 | 0.393 | 0.100 | 2.752 |
| Titanium | Ti (wt%) | 0.366 | 0.109 | 0.096 | 1.067 |
| Zinc | Zn (ppm) | 157.111 | 126.135 | 40.420 | 1706.430 |