Metals of antiquity Metals of antiquity The metals of antiquity are the seven metals which humans had identified and found use for in prehistoric times: gold, silver, copper, tin, lead, iron, and mercury. These seven are the metals from which the modern world was forged; until the discovery of arsenic in the 13th century, these were the only known elemental metals, compared to the 86 known today. The metals of antiquity generally have low melting points, with iron being the exception. While all the metals of antiquity but tin and lead occur natively, only gold and silver are commonly found as the native
Federated Moulders' (Metals) Union of Australia the Amalgamated Metals, Foundry and Shipwrights' Union in February 1983. Federated Moulders' (Metals) Union of Australia The Federated Moulders' (Metals) Union of Australia (FMMUA) was an Australian trade union which existed between 1899 and 1983. It represented moulders - skilled tradesmen who fabricated the moulds used to cast metal products in foundries. Despite its exclusive attitude towards membership, which kept the total number of FMMUA members low throughout its existence, the vital position of moulders in major industries such as mining, manufacturing and the railways ensured that the union remained industrially powerful, and the union had a reputation for being