Characterization of clinohumite by selected spectroscopic methods.
Clinohumite, a humite group mineral, originated from Pamir Mountains, USSR, is used in the present work. Optical absorption, electron paramagnetic resonance (EPR), near infrared (NIR) and Mössbauer techniques are used in the characterization of the mineral sample. The optical absorption spectrum indicates that Fe(II) impurity is present in two sites with distorted octahedral structure. NIR results are attributed to water fundamentals. EPR studies on powder sample confirm the presence of Mn(II) in three different sites and also an iron impurity. Mössbauer studies confirm the presence of iron impurity in two different sites.
Reddy
S Lakshmi
SL
Department of Physics, SVD College, Kadapa 516003, India.
Reddy
N C Gangi
NC
Reddy
G Siva
GS
Reddy
B Jagannatha
BJ
Frost
Ray L
RL
D000042:Absorption; D004578:Electron Spin Resonance Spectroscopy; D008345:Manganese / Q000032:analysis*; D008903:Minerals / Q000737:chemistry*; D055095:Optics and Photonics; D012828:Silicones / Q000737:chemistry*; D019265:Spectroscopy, Near-Infrared
D008903:Minerals; D012828:Silicones; D008345:Manganese