Hematite Facts
by
Hematite Facts
| Chemical Composition | It is iron oxide and the chemical formula is Fe2O3. |
| Colours | Steel or silver gray, black, orange, red and brown. Some common shades are blackish gray, brownish red, reddish gray, blackish red. |
| Streak | Blood red to brownish red. |
| Refractive Index | 2.87 – 3.15 |
| Specific Gravity | 4.95 – 5.26 |
| Luster | Metallic or earthy luster. |
| Solid State | Opaque. |
| Crystal System | Trigonal crystal system. |
| Hardness | Varies between 5.5 – 6.5 |
| Cleavage | None |
| Fractures | Uneven. |
| Tenacity | Brittle |
| Luminescence | None |
| Birefringence | 0.28 |
| Enhancement | No enhancement performed. |
| Source | United Kingdom, United States, Brazil, Italy, Canada, Newfoundland Germany, Norway, Sweden, Spain, New Zealand, Mexico and Australia. |
| Precautions | Only general gemstone precautions are required. |