Table 2. Elemental composition of a pure cholesterol, mixed cholesterol and a pigment gallstone.
| Element | Pure cholesterol GS * | Mixed cholesterol GS * | Pigment GS * |
|---|---|---|---|
| Carbon (C) | 99.51 | 84.68 | 23.40 |
| Oxygen (O) | 00.15 | 07.31 | 32.52 |
| Nitrogen (N) | 00.00 | 00.94 | 07.29 |
| Calcium (Ca) | 00.02 | 05.99 | 30.07 |
| Sodium (Na) | 00.09 | 00.22 | 00.69 |
| Aluminum (Al) | 00.00 | 00.01 | 00.04 |
| Phosphorus (P) | 00.00 | 00.21 | 04.68 |
| Magnesium (Mg) | 00.00 | 0.017 | 00.20 |
| Chlorine (Cl) | 00.06 | 0.04 | 00.05 |
| Manganese (Mn) | 00.00 | 0.05 | 01.02 |
| Cobalt (Co) | 00.00 | 0.00 | 00.05 |
*—Percentage (%) elemental analysis (by weight)