IMA mineral species
Ertlite
NaAl₃Al₆(Si₄B₂O₁₈)(BO₃)₃(OH)₃O
Mineral of the tourmaline mineral group.
Properties
| Chemical formula | NaAl₃Al₆(Si₄B₂O₁₈)(BO₃)₃(OH)₃O |
|---|---|
| Elements | Na, Al, Si, B, O, H |
| Crystal system | Trigonal |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Etl |
| 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): Koralpe, Austria · Sakangyi, Taunggyi, Myanmar · Sahatany valley, Madagascar
- Type locality
- Notable source / deposit
- Country of origin
Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.
Learn more
- Ertlite on Mindat.org
- Wikidata item Q127378023 (source of this page's data – you can correct it there)
IMA mineral species
Trigonal