| Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
|---|---|---|---|---|---|
| Aluminum | Al (wt%) | 5.125 | 0.601 | 3.396 | 6.345 |
| Arsenic | As (ppm) | 2.430 | 2.115 | 0.300 | 8.664 |
| Calcium | Ca (wt%) | 2.063 | 0.686 | 1.181 | 5.399 |
| Copper | Cu (ppm) | 2.725 | 2.064 | 1.000 | 10.232 |
| Iron | Fe (wt%) | 5.022 | 0.996 | 2.543 | 7.463 |
| Mercury | Hg (ppm) | 0.056 | 0.039 | 0.010 | 0.315 |
| Magnesium | Mg (wt%) | 0.762 | 0.314 | 0.274 | 2.354 |
| Manganese | Mn (ppm) | 1080.850 | 204.154 | 363.327 | 1855.020 |
| Sodium | Na (wt%) | 1.301 | 0.287 | 0.596 | 1.803 |
| Phosphorus | P (wt%) | 0.045 | 0.018 | 0.010 | 0.074 |
| Lead | Pb (ppm) | 30.720 | 7.209 | 17.990 | 56.045 |
| Selenium | Se (ppm) | 0.210 | 0.114 | 0.100 | 0.843 |
| Titanium | Ti (wt%) | 0.901 | 0.202 | 0.323 | 1.741 |
| Zinc | Zn (ppm) | 86.076 | 14.204 | 43.000 | 132.894 |