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Analysis of ancient Indian silver punch-marked coins by external PIXE
Tapash R Rautray1, Suman S Nayak, Bipin B Tripathy
1Department of Dental Biomaterials, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea; Institute of Physics, Bhubaneswar 751005, Orissa, India. tapash.rautray@gmail.com
Abstract:
Seven silver punch-marked coins were analysed using external particle induced X-ray emission technique. The main group of elements like Ag, Cu, Au, Pb and Fe were estimated along with a number of trace/minor elements such as K, Ca, Ti, V, Cr, Mn, Co, Ni and Rb in the analysed silver coins. Gold was found in all the coins and varied between 0.7% and 6.2% indicating the better economic condition of that civilisation.
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