| Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
|---|---|---|---|---|---|
| Aluminum | Al (wt%) | 8.470 | 0.851 | 6.739 | 10.045 |
| Arsenic | As (ppm) | 3.749 | 1.067 | 1.535 | 6.289 |
| Calcium | Ca (wt%) | 2.484 | 0.374 | 1.683 | 4.264 |
| Copper | Cu (ppm) | 30.868 | 13.268 | 13.178 | 89.000 |
| Iron | Fe (wt%) | 4.606 | 0.645 | 3.234 | 8.150 |
| Mercury | Hg (ppm) | 0.093 | 0.288 | 0.010 | 2.756 |
| Magnesium | Mg (wt%) | 1.124 | 0.266 | 0.737 | 2.333 |
| Manganese | Mn (ppm) | 783.670 | 103.353 | 572.886 | 1150.000 |
| Sodium | Na (wt%) | 2.169 | 0.283 | 1.407 | 2.735 |
| Phosphorus | P (wt%) | 0.082 | 0.017 | 0.039 | 0.161 |
| Lead | Pb (ppm) | 5.751 | 2.759 | 2.000 | 12.826 |
| Selenium | Se (ppm) | 0.129 | 0.056 | 0.100 | 0.433 |
| Titanium | Ti (wt%) | 0.638 | 0.095 | 0.455 | 1.177 |
| Zinc | Zn (ppm) | 86.335 | 14.587 | 56.314 | 142.000 |