Common info:
| Other names: Staurolite sand, Staurolite |
| CAS number: 12181-56-8 |
| Formula: Fe,AL,SiO4 O7 (ОН) |
| Technical Condition of Ukraine TU-U 14-10-022-99 |
| Harmonize Commodity Code 2617900000 |
Chemical analysis:
| Contents, % | GUARANTEED | TYPICAL |
| AL2O2+TiO2 min | 45,5 | 49 |
| SiO, max | 29 | 27 |
| Th+U max | 70 ppm | |
| Moisture, max | 0,5 | 0,2 |
Physical description and properties:
| Brown to black free running sand. |
| Grain shape: irregular angle. |
| Grain color: yellow (different tints), black. |
| Minerals | Contents, % |
| Staurolite: | 81-86 |
| Kyanite-sillimanite: | 0,5-1,5 |
| Ilmenite: | 5-7 |
| Zircon: | 1-1,5 |
| Turmaline: | 7-10 |
| Quartz: | 0,1-0,5 |
Storage: in closed containers or bags, protect from physical damage. Terms of storage unlimited.
| Specific Gravity: | 3600 – 3750 kg/m3 |
| Bulk density: | 1980-2040 kg/m3 |
| Grain size: | 63 • 200 mkm |
| Flammable: | Nonflammable |
| Solubility in Water: | Insoluble |
| Angle of friction: | 32° |
| Hardness: | 7-7,5 |
| Sieve Aperture (microns) | Cumulative retained, % |
| 200 | 5 |
| 160 | 45 |
| 100 | 93 |
| 63 | 99 |
