| Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
|---|---|---|---|---|---|
| Aluminum | Al (wt%) | 5.110 | 0.342 | 4.598 | 5.995 |
| Arsenic | As (ppm) | 3.867 | 1.057 | 2.300 | 6.160 |
| Calcium | Ca (wt%) | 1.393 | 0.296 | 0.905 | 2.004 |
| Copper | Cu (ppm) | 18.140 | 6.366 | 5.394 | 30.114 |
| Iron | Fe (wt%) | 4.645 | 1.080 | 3.000 | 7.325 |
| Mercury | Hg (ppm) | 0.096 | 0.024 | 0.044 | 0.158 |
| Magnesium | Mg (wt%) | 1.038 | 0.279 | 0.682 | 1.667 |
| Manganese | Mn (ppm) | 1085.510 | 214.977 | 531.000 | 1474.980 |
| Sodium | Na (wt%) | 1.404 | 0.142 | 1.121 | 1.715 |
| Phosphorus | P (wt%) | 0.063 | 0.008 | 0.050 | 0.075 |
| Lead | Pb (ppm) | 59.802 | 27.363 | 27.835 | 116.938 |
| Selenium | Se (ppm) | 0.295 | 0.052 | 0.200 | 0.400 |
| Titanium | Ti (wt%) | 0.770 | 0.122 | 0.614 | 1.014 |
| Zinc | Zn (ppm) | 108.552 | 18.390 | 91.000 | 156.623 |