| Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
|---|---|---|---|---|---|
| Aluminum | Al (wt%) | 5.572 | 0.592 | 3.713 | 6.473 |
| Arsenic | As (ppm) | 4.500 | 1.409 | 1.696 | 9.115 |
| Calcium | Ca (wt%) | 1.098 | 0.717 | 0.240 | 3.206 |
| Copper | Cu (ppm) | 15.544 | 4.280 | 4.595 | 26.612 |
| Iron | Fe (wt%) | 3.068 | 0.352 | 1.857 | 3.836 |
| Mercury | Hg (ppm) | 0.092 | 0.029 | 0.043 | 0.169 |
| Magnesium | Mg (wt%) | 0.825 | 0.255 | 0.400 | 1.551 |
| Manganese | Mn (ppm) | 1139.700 | 298.536 | 479.291 | 2399.030 |
| Sodium | Na (wt%) | 1.052 | 0.210 | 0.660 | 1.598 |
| Phosphorus | P (wt%) | 0.081 | 0.022 | 0.035 | 0.147 |
| Lead | Pb (ppm) | 38.160 | 9.014 | 18.129 | 69.975 |
| Selenium | Se (ppm) | 0.687 | 0.309 | 0.147 | 1.376 |
| Titanium | Ti (wt%) | 0.464 | 0.192 | 0.233 | 1.013 |
| Zinc | Zn (ppm) | 116.237 | 29.701 | 59.280 | 215.368 |