title: Spectral investigations on melanterite mineral from France.
abstract: EPR, Optical and IR spectral studies on a naturally occurring mineral melanterite are carried out at room temperature. EPR studies indicate the presence of Cu(II) ion in tetragonally distorted octahedral site and hyperfine lines could not be resolved due to higher concentration of the paramagnetic impurity in the mineral. Optical absorption spectrum is a characteristic of Fe(II) and Cu(II) ions. Crystal field parameters are evaluated. IR spectrum confirms the presence of water and sulphate ions.
authors: Department of Physics, SV Degree College, Cuddapah, India.
authors: S N
authors: SN
authors: Reddy
authors: P S
authors: PS
authors: Rao
authors: R V
authors: RV
authors: Ravikumar
authors: B J
authors: BJ
authors: Reddy
authors: Y P
authors: YP
authors: Reddy
mesh_terms: D004578:Electron Spin Resonance Spectroscopy / Q000379:methods; D005296:Ferrous Compounds / Q000737:chemistry*; D005602:France; D008903:Minerals / Q000737:chemistry; D013055:Spectrophotometry, Infrared / Q000379:methods
chemical_list: D005296:Ferrous Compounds; D008903:Minerals; C020748:ferrous sulfate