| Other names: | White iron pyrite |
| Mineral class: | Sulfide |
| Composition: | FeS2 |
| Hardness: | 6 - 6.5 |
| Luster: | Metallic |
| Color: | Pale brassy yellow; whiter than pyrite. Tarnishes to darker yellow brown. |
| Streak: | Black |
| Cleavage: | 2 |
| Specific Gravity: | 4.8 |
| Crystal form: | orthorhombic, cockscombs, rosettes, nodules |
| Environment: | hydrothermal metamorphic rocks, and hydrothermal replacement deposits |
| Uses: | jewelry |
| Comments: | Not scratched by a knife. Name comes from Arabic name for pyrite. Lacks cubic formation of cobaltite and pyrite. Harder than pyrite. Forms from chemical alteration of chalcopyrite. Weathers easily to limonite. |