Properties
| Chemical formula | Cu₇TlSe₄ |
|---|---|
| Elements | Cu, Tl, Se |
| Crystal system | Tetragonal |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Crk |
| Nickel–Strunz class | 2.BD.50 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Skrikerum mine, Sweden
Learn more
- Crookesite on Mindat.org
- Wikipedia article
- Wikidata item Q430083 (source of this page's data – you can correct it there)
IMA mineral species
Tetragonal
Gray