| Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
|---|---|---|---|---|---|
| Aluminum | Al (wt%) | 5.683 | 0.424 | 4.639 | 6.576 |
| Arsenic | As (ppm) | 4.251 | 1.762 | 1.243 | 8.467 |
| Calcium | Ca (wt%) | 1.803 | 0.416 | 0.732 | 2.732 |
| Copper | Cu (ppm) | 20.123 | 9.921 | 1.739 | 40.844 |
| Iron | Fe (wt%) | 4.049 | 0.386 | 3.163 | 5.529 |
| Mercury | Hg (ppm) | 0.148 | 0.073 | 0.046 | 0.443 |
| Magnesium | Mg (wt%) | 0.917 | 0.177 | 0.596 | 1.555 |
| Manganese | Mn (ppm) | 1629.100 | 266.724 | 1028.760 | 2432.160 |
| Sodium | Na (wt%) | 1.419 | 0.174 | 1.009 | 1.828 |
| Phosphorus | P (wt%) | 0.106 | 0.018 | 0.070 | 0.163 |
| Lead | Pb (ppm) | 69.647 | 36.295 | 28.101 | 172.147 |
| Selenium | Se (ppm) | 0.417 | 0.175 | 0.214 | 1.324 |
| Titanium | Ti (wt%) | 0.735 | 0.149 | 0.480 | 1.285 |
| Zinc | Zn (ppm) | 116.946 | 36.342 | 64.248 | 233.922 |