Hematite
What is Hematite?
Hematite is an iron oxide mineral that is known for its metallic luster and varying shades of black and steel to silver-grey. It’s primarily found in Brazil, Venezuela, and Canada. Hematite has been used for centuries for both decorative and functional purposes, including in jewelry and as a pigment.
Hematite is a metallic grey mineral that is highly valued for its reflective surface and its ability to be magnetized. It’s often used in jewelry and has been used historically as a pigment in paints. Its metallic luster and reflective qualities make it a popular choice for mirrors and other decorative items.
| Chemical Classification | Inorganic - Oxide |
| Color | Ranges from pale yellow to brownish-orange. |
| Streak | White |
| Luster | Vitreous. |
| Transparency | Transparent. |
| Occurrence | Brazil, Madagascar, and Russia. |
| Formation | Typically found in hydrothermal veins and pegmatites. |
| Diaphaneity | Opaque |
| Cleavage | None |
| Mohs Hardness | 7 |
| Specific Gravity | Approximately 2.65. |
| Diagnostic Properties | Metallic or earthy luster, red streak. |
| Chemical Composition | Fe2O3 |
| Pleochroism | None. |
| Crystal System | Trigonal |
| Optical Properties | Uniaxial (-) |
| Refractive Index | 2.940 - 3.220 |
| Birefringence | None (isotropic) |
| 2V angle | Not applicable (isometric) |
| Dispersion | 0.013 (similar to other quartz varieties). |