Material analysis with cathodoluminescence standard spectra

There are several cases where x-ray analyses of material cannot yield the desired results (e.g., if materials of nearly identical chemical composition are considered.) Spectral cathodoluminescence (CL) investigations can be used to overcome these difficulties. For this purpose, CL standard spectra of different standard substances are presented here. The validity of these spectra is demonstrated by spectral analysis of a fireproof ceramic consisting of Al2O3 and of quartz and by an attempt to explain the origin of the CL properties of magmatic Zircon which is of significant importance in the field of geochronological investigations.