Facts
- Chemical formula
- Fe₂Si₂O₅(OH)₄·2H₂O
- Crystal system
- Monoclinic
- Mohs hardness
- 3.0
- Number of elements
- 4
- IMA status
- Grandfathered
- Type locality
- Riddarhyttan
- Named after
- Wilhelm Hisinger
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q2176474