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BURNING LIBERTAD Black Ruthenium 1 Oz Silver Coin Mexico 2015


This beautiful new coin issue features a burning Libertad in gold with all tiny details. The coin shines in a combination of black and gold, finished with two precious metals: fully plated by Black Ruthenium and then refined in a complicated process with 999 gold. The challenge was to create a high detailed gold finishing on the black ruthenium. Mintage 1000 pieces worldwide.

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Ruthenium and Platinum Group
Ruthenium is a chemical element with symbol Ru and atomic number 44. It is a rare transition metal belonging to the platinum group of the periodic table. Like the other metals of the platinum group, ruthenium is inert to most other chemicals. The Baltic German scientist Karl Ernst Claus discovered the element in 1844, and named it after Ruthenia, the Latin word for Rus'. Ruthenium usually occurs as a minor component of platinum ores; annual production is about 20 tonnes. Most ruthenium produced is used for wear-resistant electrical contacts and the production of thick-film resistors. A minor application of ruthenium is its use in some platinum alloys.
The platinum-group metals (abbreviated as the PGMs; alternatively, the platinoids, platinides, platidises, platinum group, platinum metals, platinum family or platinum-group elements (PGEs)) is a term used sometimes to collectively refer to six metallic elements clustered together in the periodic table. These elements are all transition metals, lying in the d-block (groups 8, 9, and 10, periods 5 and 6).
The six platinum-group metals are ruthenium, rhodium, palladium, osmium, iridium, and platinum. They have similar physical and chemical properties, and tend to occur together in the same mineral deposits. However they can be further subdivided into the iridium-group platinum-group elements (IPGEs: Os, Ir, Ru) and the palladium-group platinum-group elements (PPGEs: Rh, Pt, Pd) based on their behaviour in geological systems.

  • CountryMexico
  • Year2015
  • Face Value1 Dollar
  • MetalSilver
  • Fineness (purity)999/1000
  • Weight (g)31.1 (1 oz)
  • Diameter (mm)40
  • QualityBU - Brilliant Uncirculated
  • Mintage (pcs)1.000
  • Certificate (COA)Yes
  • Presentation case (box)Yes

The reverse depicts two key symbols of the Mexican people: the Angel of Independence and the Mexican volcanoes Popocatepetl and Iztaccihuatl. Appearing in the forefront, the Winged Victory angel is a historic monument for the Mexican people and is considered the symbol of Mexico City. The Mexican volcanoes pictured in the background of the reverse memorialize the legend of the two lovers from whom they were named. On the obverse side, the National Shield is surrounded by different eagle designs used as National emblems through the years, as well as the eagle in the Codex Mendocino.