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  2. Platinum coin - Wikipedia

    en.wikipedia.org/wiki/Platinum_coin

    Platinum was first used for minting coins in Spanish-colonized America. Following the discovery of platinum in gold rocks, the Spaniards were unable to use it for a long time because they had no technology for processing this metal. The then-cheap platinum was used for various kinds of frauds, such as substituting it for the more expensive silver.

  3. Platinum - Wikipedia

    en.wikipedia.org/wiki/Platinum

    Platinum is used as an alloying agent for various metal products, including fine wires, noncorrosive laboratory containers, medical instruments, dental prostheses, electrical contacts, and thermocouples. Platinum-cobalt, an alloy of roughly three parts platinum and one part cobalt, is used to make relatively strong permanent magnets. [38]

  4. American Platinum Eagle - Wikipedia

    en.wikipedia.org/wiki/American_Platinum_Eagle

    The American Platinum Eagle is the official platinum bullion coin of the United States.In 1995, Director of the United States Mint Philip N. Diehl, American Numismatic Association President David L. Ganz, and Platinum Guild International Executive Director Jacques Luben began the legislative process of creating the Platinum Eagle.

  5. Metallurgy in pre-Columbian America - Wikipedia

    en.wikipedia.org/wiki/Metallurgy_in_pre...

    Sican tumi, or ceremonial knife, Peru, 850–1500 CE. Metallurgy in pre-Columbian America is the extraction, purification and alloying of metals and metal crafting by Indigenous peoples of the Americas prior to European contact in the late 15th century.

  6. List of countries by platinum production - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    Rank Country/Region Platinum production (kilograms) Year World 180,000 2019 1: South Africa: 130,000 2019 2: Russia: 22,000 2019 3: Zimbabwe: 15,000 2019 4: Canada

  7. Platinum group - Wikipedia

    en.wikipedia.org/wiki/Platinum_group

    Naturally occurring platinum and platinum-rich alloys were known by pre-Columbian Americans for many years. [5] However, even though the metal was used by pre-Columbian peoples, the first European reference to platinum appears in 1557 in the writings of the Italian humanist Julius Caesar Scaliger (1484–1558) as a description of a mysterious metal found in Central American mines between ...

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  9. Stillwater Mining Company - Wikipedia

    en.wikipedia.org/wiki/Stillwater_Mining_Company

    Stillwater Mining Company (NYSE: SWC) is a palladium and platinum mining company with headquarters located at Littleton, Colorado, United States. It is the only palladium and platinum producer in the USA. [1] The only other North America based palladium/platinum producer is North American Palladium, located in Canada.