| Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
|---|---|---|---|---|---|
| Aluminum | Al (wt%) | 3.388 | 0.585 | 1.843 | 5.030 |
| Arsenic | As (ppm) | 7.092 | 1.672 | 2.715 | 11.370 |
| Calcium | Ca (wt%) | 0.329 | 0.217 | 0.058 | 1.516 |
| Copper | Cu (ppm) | 13.027 | 5.071 | 4.785 | 40.740 |
| Iron | Fe (wt%) | 2.366 | 0.432 | 1.202 | 3.845 |
| Mercury | Hg (ppm) | 0.550 | 0.951 | 0.022 | 4.134 |
| Magnesium | Mg (wt%) | 0.326 | 0.091 | 0.147 | 0.755 |
| Manganese | Mn (ppm) | 559.995 | 154.723 | 139.113 | 1116.030 |
| Sodium | Na (wt%) | 0.154 | 0.052 | 0.047 | 0.290 |
| Phosphorus | P (wt%) | 0.032 | 0.007 | 0.014 | 0.053 |
| Lead | Pb (ppm) | 22.441 | 4.794 | 9.712 | 36.510 |
| Selenium | Se (ppm) | 0.194 | 0.063 | 0.101 | 0.464 |
| Titanium | Ti (wt%) | 0.249 | 0.034 | 0.134 | 0.351 |
| Zinc | Zn (ppm) | 61.246 | 14.218 | 30.296 | 112.374 |