IMA mineral species
Tangdanite
Ca₂Cu₉(AsO₄)₄(SO₄)₀.₅(OH)₉·9H₂O
Arsenate mineral.
Properties
| Chemical formula | Ca₂Cu₉(AsO₄)₄(SO₄)₀.₅(OH)₉·9H₂O |
|---|---|
| Elements | Ca, Cu, As, O, S, H |
| Crystal system | Monoclinic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Tdn |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Tangdan and Nanniping mines, People's Republic of China
- 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
- Tangdanite on Mindat.org
- Wikidata item Q19861317 (source of this page's data – you can correct it there)
IMA mineral species
Monoclinic