| Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
|---|---|---|---|---|---|
| Aluminum | Al (wt%) | 7.059 | 0.940 | 1.255 | 8.932 |
| Arsenic | As (ppm) | 6.856 | 1.742 | 1.467 | 11.869 |
| Calcium | Ca (wt%) | 0.748 | 0.380 | 0.045 | 3.769 |
| Copper | Cu (ppm) | 38.870 | 14.456 | 3.958 | 101.915 |
| Iron | Fe (wt%) | 3.564 | 0.856 | 0.285 | 7.156 |
| Mercury | Hg (ppm) | 0.083 | 0.074 | 0.011 | 0.671 |
| Magnesium | Mg (wt%) | 1.128 | 0.471 | 0.072 | 3.083 |
| Manganese | Mn (ppm) | 1055.490 | 425.742 | 48.887 | 3393.480 |
| Sodium | Na (wt%) | 1.407 | 0.335 | 0.150 | 2.213 |
| Phosphorus | P (wt%) | 0.090 | 0.032 | 0.008 | 0.218 |
| Lead | Pb (ppm) | 14.156 | 8.563 | 2.335 | 116.373 |
| Selenium | Se (ppm) | 0.243 | 0.123 | 0.100 | 0.978 |
| Titanium | Ti (wt%) | 0.437 | 0.115 | 0.097 | 1.160 |
| Zinc | Zn (ppm) | 95.748 | 18.225 | 9.803 | 153.547 |