Facts
- Chemical formula
- Ca₂CaUO₆
- Crystal system
- Monoclinic
- Mohs hardness
- 5.0
- Density
- 4.93 g/cm³
- Number of elements
- 3
- IMA status
- Approved
- Type locality
- Jabel Harmun
- Named after
- Evgeny Vapnik
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q19862034