Orichalcum, a most precious metal considered second only to gold, was highly valued in antiquity but has rarely survived. This means that the recent discovery of 47 ingots of orichalcum off the south coast of Sicily deserves to be highlighted.
In a previous blog (see: Mystery about the precious orichalcum solved?), I mentioned how 39 ingots had been recovered off the south coast of Sicily from a ship that sunk in the sixth century BC just before entering the harbor of Gela. In the same blog, I explained that orichalcum is basically composed of copper and zinc that result in brass with a very shiny finish that looks like gold.
This recent recovery comes from the same area as the previous one near the entrance to the harbor of Gela , together with two Corinthian helmets, several archaic amphorae and one round bottom flask manufactured in Massalia (modern Marseilles in France ). The artifacts have been dated to the end of 7th/early 6th century BC.
The ingots of orichalcum which vary in size from 17 to 32 cm and in weight from 254 to 1340 grams have been analyzed and revealed to be made from 80% of copper and 20% of zinc with traces of lead and nickel.
This discovery confirms, if needed, the richness of a city like Gela where many specialized craftsmen must have been working to produce objects of great value.
Is orichalcum a kind of Brass ?
ReplyDeleteKind of … More details about orichalcum can be found on my earlier blog: Mystery about the precious orichalcum solved? stating the following: Recent analysis have revealed that orichalcum is an alloy that closely resembles brass and was obtained through the reaction of zinc ore, charcoal and copper in a crucible. Examining the 39 ingots, they turned out to contain 75-80 percent of copper, 15-20 percent of zinc and small percentages of nickel, lead and iron. This theory is, however, being refuted by a professor from Rio de Janeiro stating that they are an alloy of copper, zinc and lead, believing that orichalcum has its roots in the Peruvian Andes from a civilization that lived there from 1200 to 200 BC – maybe a little too far away from home to be true?
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