| Mineral |
Typical |
| Sillimanite |
93-94% |
| Rutile/Ilmenite |
1-2% |
| Zircon |
1-1.5% |
| Quartz |
1-3% |
Typical Sieve Analysis
| Mesh (Tyler screen) |
Cumulative wt. % retained |
| 40 |
0.5 |
| 20 |
15 |
| 5 |
75 |
Sillimanite Granular – Chemical Analysis
| AI2 O3 |
59.00% (min) |
| SiO2 |
32.80% (max) |
| Ti O2 |
00.50% (max) |
| Fe2 O3 |
00.40% (max) |
| P2 O5 |
00.03% (max) |
Physical Properties
| Specific Gravity |
3.2 |
| Bulk Density |
1950-2050 Kg/Ml3 |
| Hardness (MOHS) |
7 |
| Refractoriness |
1800-1900 C |
| Expansion At 1550 C |
7.00% |
Sieve Analysis (Typical)
| Mesh (Tyler screen) |
Sieve opening in microns |
Cumulative wt. % retained |
| 35 |
425 |
0.0-0.1 |
| 48 |
300 |
0.5-2.5 |
| 65 |
212 |
3.0-10.0 |
| 100 |
150 |
30.0-50.0 |
| 150 |
106 |
85.0-95.0 |
| 200 |
75 |
99.0-100.0 |
Typical Chemical Analysis
