Orichalcum Discovery Confirms Atlantis?

On 6 January 2015, Discovery published an article entitled "Atlantis' Legendary Metal Found in Shipwreck," detailing a finding of orichalcum (a metal mentioned in some ancient writings, including a

story of the mythical island kingdom of Atlantis related in Plato's Critias dialogue). Although nobody today knows exactly what the "orichalcum" referenced in ancient writings was (possibly a gold/copper alloy), the Discovery article predictably led many readers to conflate the supposedly unique and valuable discovery of a rare, ancient alloy (orichalcum) with a presumption that the finding represented evidence of the existence of a mythical Atlantis.

The combination of archeology and folklore proved fascinating to many readers, and on 8 January 2015 the claim was picked up by the popular blog I F*cking Love Science, who advanced both interest and confusion regarding the orichalcum finding by opening its article thusly:

Discovery reported the find, but did not provide any information about when the presence of the alloy had been discovered:

"The wreck dates to the first half of the sixth century," Sebastiano Tusa, Sicily's superintendent of the Sea Office, told Discovery News. "It was found about 1,000 feet from Gela's coast at a depth of 10 feet."

"Nothing similar has ever been found," Tusa said. "We knew orichalcum from ancient texts and a few ornamental objects."