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Updated: Oct 6, 2026
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A Multimodal Wide-Field Fourier-Transform Raman Microscope
Published on: December 30, 2025
Spectral investigations on melanterite mineral from France
S N Reddy1, P S Rao, R V Ravikumar
1Department of Physics, SV Degree College, Cuddapah, India.
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.
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