The Roman Denarius Under the Julio‐claudian Emperors: Mints, Metallurgy and Technology

Butcher, Kevin; Ponting, Matthew

doi:10.1111/j.1468-0092.2005.00231.x

Cited by 35 publications

(15 citation statements)

References 11 publications

(23 reference statements)

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“…High silver content of these coins is evident that finds check in the other analyses of silver coins recovered in the other regions [35,37]. These surface features confirm the chemical composition: it is well known that in one silvercopper alloy, as the silver content comes down under 90%, the alloy will separate into two distinct phases; one is copper-rich and the other is silver-rich, the proportion of these phases being determined by the alloy composition [35,38].…”

Section: Resultssupporting

confidence: 71%

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Nondestructive Analysis of Silver Coins Minted in Taras (South Italy) between the V and the III Centuries BC

Buccolieri

Filippo

et al. 2014

Journal of Archaeology

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This work enters in an interdisciplinary research project involving the archaeometrical analysis of ancient silver coins minted in the Greek colony of Taras (the modern south Italian town of Taranto) between the V century BC and the III century BC. In this work, by comparing the results obtained from X-ray microanalysis data acquired from the least corroded surface areas and the cross-section of coins from SEM-EDX and from XRF analysis, we have demonstrated that analysed coins exhibited a corrosion layer no more than 25 μm and that surface silver enrichment was less than 1 wt%. Thus, the data obtained by using X-ray microanalysis from surface may not significantly differ from the original bulk composition. Our results demonstrate that the silver content in the coins decreases considerably ranging from about 97% for the older down to 80% for the ones of 3rd Evans period (300–270 BC), corresponding to the significant social change in the period.

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Section: Resultssupporting

confidence: 71%

“…This possibility is particularly important in the cases of coins having areas with elevated corrosion degree, as shown in Figure 5. The surface of the coins was rather rough and the granular structure is clearly evident at high magnification [33,35]. Cracks and holes with irregular shapes were visible, too.…”

Section: Resultsmentioning

confidence: 97%

Nondestructive Analysis of Silver Coins Minted in Taras (South Italy) between the V and the III Centuries BC

Buccolieri

Filippo

et al. 2014

Journal of Archaeology

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“…2000). Depletion silvering, also applied to ancient silver coins, is not strictly a plating technique and has been studied in detail elsewhere (Cope 1972; La Niece 1990, 1993; Gitler and Ponting 2003; Beck et al 2003, 2004; Butcher and Ponting 2005).…”

Section: Introductionmentioning

confidence: 99%

A Study of the Silvering Process of the Gallo‐roman Coins Forged During the Third Century Ad*

et al. 2006

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We have observed by fast neutron activation analysis (FNAA) that the global composition of the official silver coins of the Gallic emperor Postumus is not the same as those from the contemporary unofficial mints. In order to explain this phenomenon, we have carried out a metallographic study of the artefacts. Then, we have re-created the silvering process of unofficial coins in order to better understand the manufacturing process of silvering. The different steps of the replication process are explained in this paper.

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“…1 but as traces in the Krespan/Alexander hoard coins. The minor/trace elements like Bi, Pb, Mg, and Cr lead to characterizing the different mints used in the fabrication of coins …”

Section: Resultsmentioning

confidence: 99%

Examination and analysis of Indian silver punch‐marked coins employing WD‐XRF and other noninvasive techniques

Mamania¹,

Singh

Lal³

2018

Surface & Interface Analysis

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The archaeometallurgical analysis of ancient silver coins provides useful information regarding fabrication methodology, provenance, and trade route and explains large diversification in elementary composition, weight, and physical features. The present investigation deals with the chemical analysis and examination of the processing history of Indian punch-marked silver coins dating to 400-200 BC. The chemical analysis was carried out by wavelength dispersive X-ray fluorescence and X-ray Diffraction (XRD). The microstructural examination was performed using field emission scanning electron microscope (FE-SEM) and different phases were identified by Scanning Electron Microscopy coupled with Energy Dispersive X-ray (SEM-EDX) Spectroscopy. It was observed that all eight coins were manufactured with silvercopper alloy. The ore used for obtaining silver was argentiferous galena, and cupellation was carried with perfection. The absence of slag inclusions as revealed by SEM examination indicated that coins (numbers 2, 4, 5, and 7) were cast from a molten state. The presence of Cu 2 O, CuO, and Ag 2 O on the surfaces of the coins was confirmed by XRD.The formed oxide layers provided protection and saved the coins from bulky corrosion products. The data reveal great divergence of coin surface from the composition of the core with the far better metallurgical process for refining of silver for this hoard.

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The Roman Denarius Under the Julio‐claudian Emperors: Mints, Metallurgy and Technology

Cited by 35 publications

References 11 publications

Nondestructive Analysis of Silver Coins Minted in Taras (South Italy) between the V and the III Centuries BC

Nondestructive Analysis of Silver Coins Minted in Taras (South Italy) between the V and the III Centuries BC

A Study of the Silvering Process of the Gallo‐roman Coins Forged During the Third Century Ad*

Examination and analysis of Indian silver punch‐marked coins employing WD‐XRF and other noninvasive techniques

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