Properties
| Chemical formula | (Mn⁴⁺,Mn²⁺,Fe³⁺)₆O₈(OH)₆ |
|---|---|
| Elements | Mn, Fe, O, H |
| Crystal system | Orthorhombic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Jgn |
| Nickel–Strunz class | 4.FG.05 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Janggun mine, South Korea
- 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
- Janggunite on Mindat.org
- Wikipedia article
- Wikidata item Q3807037 (source of this page's data – you can correct it there)
IMA mineral species
Orthorhombic
Black