2015
DOI: 10.1016/j.nimb.2015.09.081
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Analysis of metals with luster: Roman brass and silver

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Cited by 6 publications
(5 citation statements)
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“…Indeed, the use of a specific metal or alloy, in addition to a standard weight of coins, was needed in ancient times as today to guarantee the authenticity and the value of each denomination in circulation (Smekalova, 2009). Probably, the first coins in orichalcum were minted in the Kingdom of Pontus and in the regions of Phrygia and Bithynia, during the reign of Mithridates VI (120-96 BC) (Fajfar et al, 2015;Smekalova, 2009). According to the current state of the studies (Amela Valverde, 2004;Catalli, 2003), the Roman coin production in orichalcum is limited to the Caesarean Era and to the phase of the Julio-Claudian dynasty, from the 23 BC reform to 68 AD ca; in particular, the use of brass to strike coins under the reign of Julius Caesar (from the beginning of his dictatorship in 49 BC until his death in 44 BC) can be considered as experimental (Crawford, 1974), as shown in the studies carried out by Amela Valverde (2004) on the emissions C. Clovio, RRC 476 and Q. Oppius, RRC 550, and it was suddenly halted due to Caesar's death in 44 BC.…”
Section: Historical Backgroundmentioning
confidence: 99%
“…Indeed, the use of a specific metal or alloy, in addition to a standard weight of coins, was needed in ancient times as today to guarantee the authenticity and the value of each denomination in circulation (Smekalova, 2009). Probably, the first coins in orichalcum were minted in the Kingdom of Pontus and in the regions of Phrygia and Bithynia, during the reign of Mithridates VI (120-96 BC) (Fajfar et al, 2015;Smekalova, 2009). According to the current state of the studies (Amela Valverde, 2004;Catalli, 2003), the Roman coin production in orichalcum is limited to the Caesarean Era and to the phase of the Julio-Claudian dynasty, from the 23 BC reform to 68 AD ca; in particular, the use of brass to strike coins under the reign of Julius Caesar (from the beginning of his dictatorship in 49 BC until his death in 44 BC) can be considered as experimental (Crawford, 1974), as shown in the studies carried out by Amela Valverde (2004) on the emissions C. Clovio, RRC 476 and Q. Oppius, RRC 550, and it was suddenly halted due to Caesar's death in 44 BC.…”
Section: Historical Backgroundmentioning
confidence: 99%
“…Superficial tension between the copper blank and the amalgam allows for a thin-layer deposit on its surface. Mercury evaporates after extraction from the amalgam, leaving a thin layer of high-purity silver [18,19].…”
Section: Introductionmentioning
confidence: 99%
“…The use of gold, silver (since 400 BC), copper, bronze and brass alloys to manufacture the Roman coins, for instance, is one of the pioneering mass production of metallic artefacts in history. The main minting processes were casting and plastic deformation; the latter could use hot or cold striking [9][10][11] . The metallographic analysis of two types of brass coins used by the Romans (Dupondius and AE) indicate the use of hot striking at temperatures above 800°C, see Figures 2a and 2b 10,11 .…”
Section: Introductionmentioning
confidence: 99%
“…The main minting processes were casting and plastic deformation; the latter could use hot or cold striking [9][10][11] . The metallographic analysis of two types of brass coins used by the Romans (Dupondius and AE) indicate the use of hot striking at temperatures above 800°C, see Figures 2a and 2b 10,11 . According to Calliari et al 12 , the Roman coinage process of Cu-base alloys between 100 and 300 AD could be divided into four steps: the production of alloys and casting; the blank manufacture; the hammering and annealing to produce the coin geometry; and the coin embossing by die striking.…”
Section: Introductionmentioning
confidence: 99%