(a) Mineralogical Analysis of Samples by X-ray Diffraction
| Sample | Illite + Mica | Kaolinite | Chlorite | Lizardite | Quartz | Plagioclase | Augite | Enstatite |
|---|---|---|---|---|---|---|---|---|
| Serpentinite | 0.0 | 0.0 | 0.0 | 43.8 | 3.0 | 0.0 | 0.0 | 14.8 |
| Palagonite | 0.0 | 0.0 | 0.0 | 0.0 | 3.5 | 63.7 | 25.7 | 0.0 |
| Jarositic clay | 7.1 | 8.2 | 0.0 | 0.0 | 44.7 | 0.0 | 0.0 | 0.0 |
| (continued) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Sample | Forsterite | Amphibole | Halite | Jarosite | Magnetite | Goethite | Hematite | Total |
| Serpentinite | 28.6 | 0.0 | 0.0 | 0.0 | 4.9 | 0.0 | 4.9 | 100.0 |
| Palagonite | 0.0 | trace | 7.1 | 0.0 | 0.0 | 0.0 | 0.0 | 100.0 |
| Jarositic clay | 0.0 | 0.0 | 0.0 | 4.8 | 0.0 | 35.2 | 0.0 | 100.0 |
Quantified by Rietveld (Autoquan and SiroQuant). No samples contained illite/smectite or potassium feldspar.