Facts
- Chemical formula
- Fe³⁺xFe²⁺₁-xSn(OH)₆-xOx
- Crystal system
- Tetragonal
- Number of elements
- 4
- IMA status
- Approved
- Type locality
- Siglo Veinte mine
- Named after
- Jean A. Bandy
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3807724