Facts
- Chemical formula
- Fe³⁺₄Ti⁴⁺₃Sb³⁺O₁₃(OH)
- Crystal system
- Monoclinic
- Number of elements
- 5
- IMA status
- Grandfathered
- Type locality
- Tripuí
- Named after
- Orville Adalbert Derby
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3705832