Facts
- Chemical formula
- SiO₂
- Crystal system
- Orthorhombic
- Mohs hardness
- 7.0
- Density
- 2.63 g/cm³
- Number of elements
- 2
- IMA status
- Grandfathered
- Type locality
- Mount San Cristóbal
- Named after
- twin
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q410893