Mineral variety Gemstone
Iolite
Mg₂Al₄Si₅O₁₈
Gem variety of the mineral cordierite.
Variety of Cordierite.
Properties
| Chemical formula | Mg₂Al₄Si₅O₁₈ |
|---|---|
| Elements | Mg, Al, Si, O |
| Crystal system | — |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | blue, grey, purple |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🔗 See also
- Iolite-Sunstone: iolite with glittering sunstone and hematite from Odisha, India
Varieties & related stones
Learn more
- Iolite on Mindat.org
- Wikidata item Q122998805 (source of this page's data – you can correct it there)
Mineral variety
Blue
Gemstone