Detection of Surface-Silvering and Near-Surface Silver Enrichment on AD 253/254 Bosporan Staters by Electron Probe Micro-Analysis

M. G. Abramzon; Абрамзон М. Г.; Yu. Yu. Efimova; Ефимова Ю. Ю.; N. V. Koptseva; Копцева Н. В.; D. A. Gorlenko; Горленко Д. А.; I. A. Saprykina; Сапрыкина И. А.; T. N. Smekalova; Смекалова Т. Н.

doi:10.31857/S1028096023100023

Detection of Surface-Silvering and Near-Surface Silver Enrichment on AD 253/254 Bosporan Staters by Electron Probe Micro-Analysis

Autores: Abramzon M.¹^,2, Efimova Y.¹, Koptseva N.¹, Gorlenko D.¹, Saprykina I.², Smekalova T.³
Afiliações:
1. Nosov Magnitogorsk State Technical University
2. Institute of Archaeology
3. Crimean Federal University named after V.I. Vernadsky
Edição: Nº 10 (2023)
Páginas: 96-102
Seção: Articles
URL: https://journals.rcsi.science/1028-0960/article/view/141033
DOI: https://doi.org/10.31857/S1028096023100023
EDN: https://elibrary.ru/TGDHYS
ID: 141033

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Resumo

The article deals with the results of the EPMA investigation of surface of two groups of AD 253/254 Bosporan staters minted in the names of Rhescuporis V and Pharsanzes. It was found that a special silvering technique was used for each group. In the Phescuporis V’s coin production, depletion-silvering was executed by first tempering and oxidizing the flan, then attacking it with organic acids before striking. No silver coating was revealed on his coins. Meanwhile Pharsanzes staters have a silver coating with a thickness of up to 10 µm. The elements chlorine, calcium, sodium and magnesium that were first revealed in the surface layer suggest the use of a special paste for silvering the coins of this king. Its components could be chlorides of silver, sodium, ammonium, mercury, potassium hydrogen tartrate and chalk as a thickener. Both techniques for silver surface enrichment of coins were common practice in the Roman coinage from the late third to beginning of the fourth century AD.

Palavras-chave

natural science methods in archaeology, metallography, EPMA, coin alloy, surface-silvering of ancient coins, Bosporus, staters.

Bibliografia

Анохин В.А. Античные монеты Северного Причерноморья. Каталог. Киев: Изд. дом Стилос, 2011. № 2059–2061, 2089.
Смекалова Т.Н., Абрамзон М.Г., Сапрыкина И.А., Антипенко А.В., Лобода А.Ю., Быковская Н.В., Гунчина О.В. // МАИЭТ. 2019. Вып. XXIV. С. 387.
Абрамзон М.Г., Ефимова Ю.Ю., Копцева Н.В., Сапрыкина И.А., Смекалова Т.Н. Последнее серебро Боспора: мультианалитический подход к иcследованию боспорской серебряной чеканки III в. н.э. Серия: Археометрия Причерноморья. Москва: Ин-т археологии РАН, 2021. Вып. 4. С. 44.
Kraft G., Flege S., Reiff F., Ortner H.M., Ensinger W. // Microchim Acta. 2006. № 155. P. 179.
Абрамзон М.Г., Гунчина О.Л. // ПИФК. 2016. № 4. С. 280.
Abramzon M.G., Baryshnikov M.P., Efimova Yu.Yu., Koptseva N.V., Saprykina I.A., Smekalova T.N. // J. Surf. Invest.: X-ray, Synchrotron Neutron Tech. 2020. V. 14. № 3. P. 529.
Webb P.H. The Roman Imperial Coinage. V. V. 1: Valerian to the Interregnum. London, 1972. P. 8.
Сапрыкина И.А., Пельгунова Л.А., Гунчина О.Л., Равич И.Г., Кичанов С.Е., Козленко Д.П., Назаров К.М., // Абрамзон М.Г., Кузнецов В.Д. Клад позднебоспорских статеров из Фанагории (Фанагория. Т. 5). Москва: Ин-т археологии РАН, 2017. С. 489.
Deraisme A., Beck L., Pilon F., Barrandon J.-N. // Archaeometry. 2006. № 48.3. P. 474.
Cope L. // Methods of Chemical and Metallurgical Investigations of Ancient Coinage: A Symposium Held by the Royal Numismatic Society at Burlington House, London, on 9–11 December 1970, RNS Special Publication № 8 / Ed. Hall E.T., Metcalf D.M., Royal Numismatic Society, London: Google Scholar, 1972. P. 267.
Beck L., Bosonnet S., Révellion S., Eliot D., Pilon F. // Nucl. Instrum. Methods Phys. Res. B. 2004. № 226. P. 158.
Zwicky-Sobczyk C.N., Stern W.B. // Archaeometry. 1997. № 39.2. P. 404.
La Niece S. // The Antiquaries Journal. 1990. № 70.1. P. 102.
Vlachou C., McDonnell J.G., Janaway R.C. // Mat. Res. Soc. Symp. Proc. 2002. V. 712. P. 119.2.1.