Vibrational spectroscopic characterization of the sulphate mineral leightonite K2Ca2Cu(SO4)4⋠2H2O - Implications for the molecular structure

- Leightonite is a rare sulphate mineral of formula K2Ca2Cu(SO4)4⋅2H2O.
- The chemical analysis was undertaken by electron probe.
- The molecular structure was ascertained by vibrational spectroscopy.