Abstract

Far-infrared spectroscopic analysis of minerals and inorganics was investigated. Far-infrared spectra, 200 to 50 cm⁻¹ (50 to 200 μ), were obtained for 18 different minerals and inorganics, including 8 sulfides, 3 oxides, 3 carbonates, and 4 sulfates, many for the first time. Original analytical applications were made on samples of practical interest. These included the identification of cinnabar in a high-quartz ore, cuprite and tenorite in a mixture, calcite and dolomite in a coal refuse sample, dawsonite and dolomite in an oil shale, thenardite in a boiler deposit, and ferrous sulfate in the surface film on pyrite.

Technical Note: Infrared Absorption Spectra of Minerals and Inorganic Compounds

J. Opt. Soc. Am. 41(3) 213_1-213 (1951)

Interferometric Spectroscopy in the Far Infrared

John Strong and G. A. Vanasse
J. Opt. Soc. Am. 49(9) 844-850 (1959)

Far Infrared Airborne Spectroscopy

J. A. Eddy, R. H. Lee, P. J. Léna, and R. M. MacQueen
Appl. Opt. 9(2) 439-446 (1970)

High-Resolution Fourier Transform Spectroscopy in the Far-Infrared

P. L. Richards
J. Opt. Soc. Am. 54(12) 1474-1484 (1964)

Infrared Spectral Reflectance of Some Common Minerals

W. A. Hovis
Appl. Opt. 5(2) 245-248 (1966)