Multi-element analysis of emeralds and associated rocks by k(o) neutron activation analysis
1Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India.
Abstract:
Multi-element analysis was carried out in natural emeralds, their associated rocks and one sample of beryl obtained from Rajasthan, India. The concentrations of 21 elements were assayed by Instrumental Neutron Activation Analysis using the k0 method (k0 INAA method) and high-resolution gamma ray spectrometry. The data reveal the segregation of some elements from associated (trapped and host) rocks to the mineral beryl forming the gemstones. A reference rock standard of the US Geological Survey (USGS BCR-1) was also analysed as a control of the method.
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