IMA mineral species
Oxy-vanadium-dravite
Na(V)₃(V₄Mg₂)Si₆O₁₈(BO₃)₃(OH)₃O
Tourmaline, cyclosilicate mineral.
Properties
⛏ Mohs hardness7.5
💅🪙🍶🔪💎
Harder than quartz: scratches glass and steel.
| Chemical formula | Na(V)₃(V₄Mg₂)Si₆O₁₈(BO₃)₃(OH)₃O |
|---|---|
| Elements | Na, V, Mg, Si, O, B, H |
| Crystal system | Trigonal |
| Mohs hardness | 7.5 |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Ovdrv |
| 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): minerals of Slyudyanka, Russia
Learn more
- Oxy-vanadium-dravite on Mindat.org
- Wikidata item Q3887791 (source of this page's data – you can correct it there)
IMA mineral species
7–8
Trigonal