Elements | O | C | Na | Mg | Al | Si | K | Ca | Ti | Fe |
% Atomic | 67.71 | 3.27 | 0.26 | 1.03 | 7.20 | 14.82 | 1.36 | 2.29 | 0.26 | 1.79 |
% Mass | 53.58 | 1.94 | 0.30 | 1.24 | 9.61 | 20.59 | 2.63 | 4.53 | 0.62 | 4.94 |