| Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
|---|---|---|---|---|---|
| Aluminum | Al (wt%) | 4.800 | 0.852 | 1.716 | 7.107 |
| Arsenic | As (ppm) | 6.804 | 2.308 | 3.538 | 21.543 |
| Calcium | Ca (wt%) | 5.474 | 2.742 | 0.605 | 15.368 |
| Copper | Cu (ppm) | 16.058 | 4.655 | 7.650 | 52.182 |
| Iron | Fe (wt%) | 1.893 | 0.347 | 0.904 | 3.625 |
| Mercury | Hg (ppm) | 0.021 | 0.012 | 0.010 | 0.079 |
| Magnesium | Mg (wt%) | 1.606 | 0.719 | 0.471 | 7.636 |
| Manganese | Mn (ppm) | 442.831 | 66.528 | 232.625 | 669.875 |
| Sodium | Na (wt%) | 0.925 | 0.257 | 0.317 | 2.377 |
| Phosphorus | P (wt%) | 0.088 | 0.019 | 0.046 | 0.170 |
| Lead | Pb (ppm) | 33.628 | 59.718 | 14.027 | 1413.000 |
| Selenium | Se (ppm) | 0.247 | 0.118 | 0.100 | 0.965 |
| Titanium | Ti (wt%) | 0.236 | 0.051 | 0.077 | 0.512 |
| Zinc | Zn (ppm) | 63.449 | 12.462 | 33.815 | 162.332 |