Silver and tin plating as medieval techniques of producing counterfeit coins and their identification by means of micro-XRF

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00101435%3A_____%2F17%3AN0000018" target="_blank" >RIV/00101435:_____/17:N0000018 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21340/17:00317250

Result on the web

<a href="http://dx.doi.org/https://doi.org/10.1016/j.radphyschem.2016.08.013" target="_blank" >http://dx.doi.org/https://doi.org/10.1016/j.radphyschem.2016.08.013</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/https://doi.org/10.1016/j.radphyschem.2016.08.013" target="_blank" >https://doi.org/10.1016/j.radphyschem.2016.08.013</a>

Result language

angličtina

Original language name

Silver and tin plating as medieval techniques of producing counterfeit coins and their identification by means of micro-XRF

Original language description

Archaeological surveys and metal detector prospecting yield a great amount of coins from the medieval period. Naturally, some of these are counterfeit which an experienced numismatist can determine without using chemical methods. The production of counterfeit coins in the middle ages took place in castles, caves or other remote areas where waste from this activity can still be found today – copper sheets, technical ceramics and counterfeit coins. Until recently, it has been assumed that medieval counterfeit coins are made by silver-plating copper blanks using an amalgam. However, the performed analyses reveal that there are many more techniques of counterfeiting of coins. Other techniques were based on e.g. tin amalgam plating of the blanks or alloying so-called white metal with silver-like appearance from which the coins were minted. Current chemical analyses indicate that the coins were often tinned by hot dipping with no amalgamation. Micro-X-ray fluorescence analysis has been chosen as a suitable non-destructive method to identify present chemical elements in investigated artifacts and to quantify their concentrations. In addition, a quick technique telltale the plating was applied. This technique utilizes the detected fluorescence ratio Ka/Kb of copper, which is the main ingredient of a lot of historical metallic materials.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

60102 - Archaeology

Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Radiation Physics and Chemistry

ISSN

0969-806X

e-ISSN

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Volume of the periodical

neuveden

Issue of the periodical within the volume

137

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

4

Pages from-to

234-237

UT code for WoS article

000404201800044

EID of the result in the Scopus database

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