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  2. Metals of antiquity - Wikipedia

    en.wikipedia.org/wiki/Metals_of_antiquity

    The earliest gold artifacts were discovered at the site of Wadi Qana in the Levant. [13] Silver is estimated to have been discovered in Asia Minor shortly after copper and gold. [14] There is evidence that iron was known from before 5000 BC. [15] The oldest known iron objects used by humans are some beads of meteoric iron, made in Egypt in ...

  3. Coinage metals - Wikipedia

    en.wikipedia.org/wiki/Coinage_metals

    Silver coins from about 700 BC are known from Aegina Island. [3] Early electrum coins from Ephesus, Lydia, date from about 650 BC. [4] Ancient India in 6th century BC, was also one of the earliest issuers of coins in the world. [5] The gold Croeseids, issued in Lydia, were the first true gold coins with a

  4. Platinum as an investment - Wikipedia

    en.wikipedia.org/wiki/Platinum_as_an_investment

    American Platinum Eagle, the official platinum bullion coin of the United States. Investment in platinum is often compared in financial history to gold and silver, which were both known to be used as money in ancient civilizations. Experts posit that platinum is about 15–20 times scarcer than gold and approximately 60–100 times scarcer than ...

  5. The Harpole Treasure includes one of the most valuable pieces ...

    www.aol.com/harpole-treasure-includes-one-most...

    It’s an asymmetrical set-out of the gold coins, and the precious stones mounted in gold, which we haven’t seen before." The artifacts found were carefully cleaned, including the central ...

  6. 'Pawn Stars:' Why a rare coin worth six figures sold for much ...

    www.aol.com/entertainment/2014-12-12-pawn-stars...

    On History Channel's hit show "Pawn Stars," a man came in to sell a 1907 Saint-Gaudens double eagle $20 gold coin. The coins are extremely rare, and some of them have sold for more than $1 million ...

  7. Precious metal - Wikipedia

    en.wikipedia.org/wiki/Precious_metal

    One of the largest bullion coins in the world was the 10,000-dollar Australian Gold Nugget coin minted in Australia, which consists of a full kilogram of 99.9% pure gold. In 2012, the Perth Mint produced a 1-tonne coin of 99.99% pure gold with a face value of $ 1 million AUD, making it the largest minted coin in the world with a gold value of ...

  8. Ancient gold coins found hidden in wall shed light on ...

    www.aol.com/news/ancient-gold-coins-found-hidden...

    Israeli archaeologists have hailed the discovery of 44 gold coins in a wall as a rare glimpse into the Byzantine Empire past at a time of violent conquest.

  9. Platinum - Wikipedia

    en.wikipedia.org/wiki/Platinum

    Alloying this impure platinum residue called "plyoxen" [citation needed] with gold was the only solution at the time to obtain a pliable compound, but nowadays, very pure platinum is available and extremely long wires can be drawn from pure platinum, very easily, due to its crystalline structure, which is similar to that of many soft metals.

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