Premium
Raman spectroscopy of beaverite and plumbojarosite
Author(s) -
Frost Ray L.,
Wills RachaelAnne,
Martens Wayde
Publication year - 2005
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1414
Subject(s) - raman spectroscopy , jarosite , multiplicity (mathematics) , chemistry , analytical chemistry (journal) , vibration , spectroscopy , crystallography , mineralogy , physics , optics , geometry , organic chemistry , mathematics , quantum mechanics
Raman spectroscopy has been used to characterise the compound of formula Pb(Fe 3+ , Cu 2+ ) 3 (SO 4 ) 2 (OH) 6 , equivalent to synthetic beaverite, one of the jarosite subgroup minerals. The mineral is characterised by multiple OH stretching vibrations attributed to non‐equivalent OH units in the structure. Multiple vibrations are observed for the SO 4 2− stretching vibrations indicating the non‐equivalence of the sulphate units in the structure. This multiplicity is also reflected in the ν 2 and ν 4 bending modes. The Raman spectrum of beaverite is significantly different from that of plumbojarosite, for which multiple bands are not observed. Copyright © 2005 John Wiley & Sons, Ltd.