| Fluorcaphite | |
| Molweight: | 671.38 |
| Strunz: | 7/B.39-95 |
| System: | Hexagonal |
| Class: | Dipyrimidal |
| Symmetry: | P63 (No. 173) |
| Unit Cell: | 545.39 Å3 (calculated from unit cell) |
| Colour: | Light to bright yellow |
| Habit: | Prismatic, subhedral crystals |
| Fracture: | Sub-conchoidal |
| Tenacity: | Brittle |
| Mohs: | 5 |
| Luster: | Vitreous |
| Streak: | White |
| Diaphaneity: | Transparent |
| Density: | 3.60 |
| Birefringence: | 0.012 |
Fluorcaphite is a mineral with the chemical formula .[1] It is found in the Kola Peninsula in Russia.[2] Its crystals are hexagonal (dipyramidal class) and are transparent with a vitreous luster. It is light to bright yellow, leaves a white streak and is rated five on the Mohs Scale.[3] Fluorcaphite is radioactive.[1]