Facts
- Chemical formula
- Cu₄SO₄(OH)₆
- Crystal system
- Monoclinic
- Number of elements
- 4
- IMA status
- Approved
- Type locality
- Mednorudyanskoye copper deposit
- Named after
- André-Jean-François-Marie Brochant de Villiers
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q411036