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Platinum is a chemical element; it has symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanish platina, a diminutive of plata "little silver". [7] [8] Platinum is a member of the platinum group of elements and group 10 of the periodic ...
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 ...
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 ...
Platinum coin. Common obverse of the American Eagle coins. Platinum coins are a form of currency. Platinum has an international currency symbol under ISO 4217 of XPT. The issues of legitimate platinum coins were initiated by Spain in Spanish-colonized America in the 18th century and continued by the Russian Empire in the 19th century. As a form ...
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
The Platinum Eagle is authorized by the United States Congress, [4] and is backed by the United States Mint for weight, content, and purity. Its obverse was designed by John Mercanti, and portrays the Statue of Liberty (Liberty Enlightening the World) by Frédéric Auguste Bartholdi. Proof versions of the coins are intended for coin collectors ...
Platinum. Website. www.angloamericanplatinum.com. Anglo American Platinum Limited (JSE: AMS) is the world's largest primary producer of platinum, accounting for about 38% of the world's annual supply. Based in South Africa, most of the group's operations lie to the northwest and northeast of Johannesburg.
Standard atomic weight Ar° (Pt) Naturally occurring platinum (78 Pt) consists of five stable isotopes (192 Pt, 194 Pt, 195 Pt, 196 Pt, 198 Pt) and one very long-lived (half-life 4.83×10 11 years) radioisotope (190 Pt). There are also 34 known synthetic radioisotopes, the longest-lived of which is 193 Pt with a half-life of 50 years.