Spectroscopic characterization of manganese minerals

被引：2

作者：

Reddy, S. Lakshmi ^{[1
]}

Suvarna, K. Padma ^{[2
]}

Reddy, G. Udayabhaska ^{[1
]}

Endo, Tamio ^{[4
]}

Frost, R. L. ^{[3
]}

机构：

[1] SVD Coll, Dept Phys, Cuddapah 516003, India

[2] Jawaharlal Nehru Technol Univ, Dept Phys, Coll Engn, Anantapur, Andhra Pradesh, India

[3] Mie Univ, Fac Engn, Tsu, Mie 5148507, Japan

[4] Queensland Univ Technol, Fac Sci & Engn, Sch Chem Phys & Mech Engn, Brisbane, Qld 4001, Australia

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2014年 / 117卷

关键词：

Alleghanyite; Ardenite; Leucophoenicite minerals; Mn(II); EPR; Optical absorption; ELECTRON-PARAMAGNETIC-RESONANCE; OPTICAL-ABSORPTION; LEUCOPHOENICITE; IR;

D O I：

10.1016/j.saa.2013.08.028

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Manganese minerals ardenite, alleghanyite and leucopoenicite originated from Madhya Pradesh, India, Nagano prefecture Japan, Sussex Country and Parker Shaft Franklin, Sussex Country, New jersey respectively are used in the present work. In these minerals manganese is the major constituent and iron if present is in traces only. An EPR study of on all of the above samples confirms the presence of Mn(II) with g around 2.0. Optical absorption spectrum of the mineral alleghanyite indicates that Mn(II) is present in two different octahedral sites and in leucophoenicite Mn(II) is also in octahedral geometry. Ardenite mineral gives only a few Mn(II) bands. NIR results of the minerals ardenite, leucophoenicite and alleghanyite are due to hydroxyl and silicate anions which confirming the formulae of the minerals. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：270 / 275

页数：6

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