Spectral investigations on melanterite mineral from France

Citation
Sn. Reddy et al., Spectral investigations on melanterite mineral from France, SPECT ACT A, 57(6), 2001, pp. 1283-1287
Citations number
24
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
ISSN journal
13861425 → ACNP
Volume
57
Issue
6
Year of publication
2001
Pages
1283 - 1287
Database
ISI
SICI code
1386-1425(200105)57:6<1283:SIOMMF>2.0.ZU;2-3
Abstract
EPR, Optical and LR spectral studies on a naturally occurring mineral melan terite are carried out at room temperature. EPR studies indicate the presen ce of Cu(II) ion in tetragonally distorted octahedral sire and hyperfine Li nes could not be resolved due to higher concentration of the paramagnetic i mpurity in the mineral. Optical absorption spectrum is a characteristic of Fe(II) and Cu(II) ions. Crystal field parameters art: evaluated. IR spectru m confirms the presence of water and sulphate ions. (C) 2001 Elsevier Scien ce B.V. All rights reserved.