| Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
|---|---|---|---|---|---|
| Aluminum | Al (wt%) | 6.475 | 0.537 | 3.831 | 8.692 |
| Arsenic | As (ppm) | 5.275 | 1.837 | 1.104 | 14.422 |
| Calcium | Ca (wt%) | 2.118 | 0.929 | 0.500 | 11.614 |
| Copper | Cu (ppm) | 18.124 | 8.930 | 1.084 | 59.828 |
| Iron | Fe (wt%) | 2.780 | 0.765 | 0.672 | 6.398 |
| Mercury | Hg (ppm) | 0.078 | 0.106 | 0.010 | 0.862 |
| Magnesium | Mg (wt%) | 1.017 | 0.812 | 0.159 | 6.879 |
| Manganese | Mn (ppm) | 493.358 | 198.588 | 178.360 | 1550.490 |
| Sodium | Na (wt%) | 1.732 | 0.268 | 0.606 | 2.656 |
| Phosphorus | P (wt%) | 0.094 | 0.048 | 0.027 | 0.644 |
| Lead | Pb (ppm) | 26.137 | 32.057 | 7.568 | 675.726 |
| Selenium | Se (ppm) | 0.747 | 1.004 | 0.102 | 8.268 |
| Titanium | Ti (wt%) | 0.351 | 0.104 | 0.148 | 1.390 |
| Zinc | Zn (ppm) | 61.602 | 18.575 | 15.061 | 181.564 |