| Al2O3 |
18.06% |
| Fe2 O3 |
29.5% |
| Si O2 |
37.77% |
| Mg O |
4.75% |
| CaO |
9% |
| Ti O2 |
1.0% |
| P2 O5 |
0.05% |
| Mn O |
0.5% |
| Zr O2 |
Traces |
| CHLORIDE CONTENT |
Less than 25ppm |
| SOLUBLE SALTS |
Less than 100 ppm |
| PH OF AQUEOUS MEDIUM |
6.93 |
| GYPSUM CONTENT |
Nil |
| MOISTURE CONTENT |
Less than 0.5% |
| CARBONATE CONTENT |
Traces |
| LOSS ON IGNITION |
Nil |
| METAL CONTENT |
Traces |
OTHER CHARACTERISTICS
| Crystal System |
Cubic |
| Habit |
Trapezohedron |
| Fracture |
Sub-Conchoidal |
| Durability |
Very good |
| Free Flow |
90% Minimum |
| Susceptibility to Acid |
None |
| Moisture Absorption |
Non Hygroscopic, Inert. |
| Magnetism |
Very Slightly Magnetic |
| Conductivity |
Less than 25 Microsiemens per Meter |
| Radio Activity |
Not Detectable above background |
| Pathological Effects |
None |
| Free Silica Content |
None |
Mineralogical Composition
| Garnet (Almandite) |
97-98% |
| Ilmenite |
1-2% |
| Quartz |
<0.5% |
| Others |
0.5% |
PHYSICAL CHARACTERISTICS
| Specific Weight |
4.1 g/cm3 |
| Average Bulk |
2.4 g/cm3 |
| Hardness |
7 (Mohs Scale) |
Click to enlarge