Raman studies on rock-forming minerals. Part II. Minerals containing MO3, MO4, and MO6 groups

Abstract

Raman spectra of a number of carbonate, phosphate, arsenate, vanadate, niobate, tantalate, sulphate, chromate, molybdate, and tungstate minerals have been measured over the range 140–1200 cm.^–1(600–1600 cm.^–1 for carbonates). The internal modes of the (MO_n) groups in these minerals have been assigned, and the validity of factor group and site symmetry analyses discussed. The use of Raman spectroscopy for mineral studies is discussed.