Facts
- Chemical formula
- (☐,H₂O)₂Ta₂(O,OH)₆(H₂O)
- Crystal system
- Cubic
- Density
- 6.67 g/cm³
- Number of elements
- 3
- IMA status
- Approved
- Type locality
- Volta Grande mine
- Named after
- vacancy
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q19841453