| Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
|---|---|---|---|---|---|
| Aluminum | Al (wt%) | 6.038 | 0.673 | 3.958 | 8.095 |
| Arsenic | As (ppm) | 7.230 | 2.499 | 1.675 | 22.291 |
| Calcium | Ca (wt%) | 0.618 | 0.263 | 0.150 | 3.650 |
| Copper | Cu (ppm) | 12.127 | 7.305 | 3.197 | 104.467 |
| Iron | Fe (wt%) | 3.263 | 0.500 | 1.981 | 5.251 |
| Mercury | Hg (ppm) | 0.054 | 0.018 | 0.011 | 0.199 |
| Magnesium | Mg (wt%) | 0.941 | 0.189 | 0.518 | 1.584 |
| Manganese | Mn (ppm) | 1154.350 | 434.564 | 278.497 | 4359.250 |
| Sodium | Na (wt%) | 1.425 | 0.187 | 0.636 | 2.305 |
| Phosphorus | P (wt%) | 0.067 | 0.014 | 0.036 | 0.122 |
| Lead | Pb (ppm) | 15.074 | 8.073 | 7.098 | 159.038 |
| Selenium | Se (ppm) | 0.221 | 0.104 | 0.100 | 0.930 |
| Titanium | Ti (wt%) | 0.376 | 0.055 | 0.201 | 0.662 |
| Zinc | Zn (ppm) | 99.151 | 24.198 | 46.639 | 378.174 |