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The specific gravity of Chinese garnet is 3.96g/cm3. The main inner structure of garnet is crystallized iron and alumina. It is suitable for free lapping or being used for making organic bonded abrasive tools. It was also mainly used in waterjet cutting.
| Item | Garnet | |
| Chemical composition |
SiO2 | 36~40% |
| Al2O3 | 20~24% | |
| Fe2O3 | 4~6% | |
| TiO2 | 0~0.5% | |
| MgO | 8~13% | |
| FeO | 22~24% | |
| CaO | 6~9% | |
| MNO | 0~0.5% | |