IMA mineral species
Fluor-dravite
NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃F
Tourmaline mineral.
Properties
⛏ Mohs hardness7
💅🪙🍶🔪💎
Harder than quartz: scratches glass and steel.
| Chemical formula | NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃F |
|---|---|
| Elements | Na, Mg, Al, Si, O, B, H, F |
| Crystal system | Trigonal |
| Mohs hardness | 7 |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Fdrv |
| Nickel–Strunz class | 9.CK.05 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Crabtree Mine, United States
Learn more
- Fluor-dravite on Mindat.org
- Wikidata item Q19833668 (source of this page's data – you can correct it there)
IMA mineral species
7–8
Trigonal