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EDS results residue after burning.
| Sample | C% | Si% | O% | P% |
|---|---|---|---|---|
| SR | −1 | 51.60 | 48.40 | − |
| SR/AM6 | −1 | 53.87 | 46.13 | − |
| SR/HA6 | −1 | 54.96 | 45.04 | − |
| SR/OL6 | −1 | 55.64 | 44.36 | − |
| SR/MPP | 10.00 | 38.27 | 49.94 | 1.79 |
| SR/AM6/MPP14 | 9.59 | 40.90 | 48.40 | 1.11 |
| SR/HA6/MPP14 | 4.48 | 42.45 | 51.01 | 2.06 |
| SR/OL6/MPP14 | 3.00 | 45.36 | 49.37 | 2.27 |
1 small amount of carbon.
