FIELD: chemistry.
SUBSTANCE: monofractions are collected and luminescence is excited therein using an X-ray tube. The X-ray luminescence spectrum is recorded in the wavelength range of 400-800 nm and based on spectral composition of radiation, marshite is determined at λ=680-730 nm, miersite is determined at λ=630-670 nm, and iodargyrite is determined from emission bands at λ=420-460 nm and 580-640 nm.
EFFECT: rapid and reliable determination of composition of minerals.
3 cl, 7 dwg, 1 tbl
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