Copper-based Roman coins, chemical compositions

Chemical Compositions of Copper-Based Roman Coins. Augustan Quadrantes, ca. 

This chapter is the seventh in a series of articles on the chemical composition of copper-based Roman coins. 

Chemical Composition of Copper-Based Coins of the Roman Republic,... 

Additional analyses are required before one may reliably conclude that chemical composition correlates with denomination. There are indications that composition correlates with denomination (e.g., the exceptionally high lead contents of mid-second-century B.C. semisses and asses and the low lead contents of quadrantes). However, larger numbers of coins must be chemically analyzed to obtain a thorough understanding of the Roman Republican copper-based coinage. 

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