Tourmaline
| Synonyms: | Aphrizite, Aphrysite, Ash Draver, Blue Schorl, Ceylonese Peridot, Chameleonite, Iochroite, Taltalite, Tourmaline Group, Tourmaline Supergroup, Tourmalinite, Turmaline, Xeuxite, Zeuxite |
| IMA Staus: | Not as singl mineral recognized, (synonymous with tourmaline group) |
| Classification: | Silicates, Cyclosilicates |
| Crystal system: | Trigonal |
| Density (g/cm3): | 2,9 - 3,1 measured |
| Fracture: | Irregular/Uneven, Conchoidal |
| Hardness (Mohs): | About 7 |
| Colour: | Multicolored |
| Application: | Gemstone |