Cyprine (mineral)

Cyprine
General
CategorySilicate mineral variety
FormulaCa19Cu2+(Al10Mg2)Si18O68(OH)10
IMA symbolCyp
Crystal systemTetragonal
Crystal classDipyramidal (4/m)
H-M symbol: (4/m)
Space groupTetragonal
Space group: P4/n
Unit cella = 15.52, c = 11.82 [Å] (approximated)
Identification
References

Cyprine is a copper-rich member of the vesuvianite group with the formula Ca19Cu2+(Al10Mg2)Si18O68(OH)10. A similar name is given to a Cu-bearing variety but not Cu-dominant member within the group. Cyprine (sensu stricto) was discovered in the Wessels mine in the vicinity of Hotazel, Kalahari Manganese Field, South Africa.