For quick and reliable estimation of some of the metallogenic elements and a few trace elements, approximately 100 mg of each homogenized sample was accurately weighed and irradiated (at a flux of 1.5 X 10¹³n/cm²/sec) for 30 minutes along with monitors of Fe, Cu, Zn, As, Sb, Co, Au and standard rock sample (BCR-1). After cooling for two days, their radioactivity measurements were made for various desired isotopes. This single experiment could provide data for eleven different major and trace elements.