Request InfoSpectral Evolution Inc.Spectral Evolution Inc.’s oreXpress spectrometer with EZ-ID software can provide critical real-time mineral identification in limestone exploration where it is important to distinguish between calcite, dolomite and clays. The oreXpress field NIR spectrometer with EZ-ID delivers two spectral libraries of over 500 minerals and 1500 spectra that include known samples for calcite, dolomite and clays like kaolinite. 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