Russian precious metal Ruthenium
Chemical element with symbol Ru is Ruthenium – silvery-gray precious metal, belonging to the platinum group of the Mendeleev periodic table, one of the platinum analogues. Ruthenium was discovered in our country in 1844 and named in honor of Russia – in Latin ‘Ruthenia’ means Russia. The author of the Russian precious metal Ruthenium was a professor of Kazan University Karl Karlovich Klaus. He allocated ruthenium from Ural platinum ore in its purest form. In nature, Ruthenium is extremely rare, and is used in electronics, aerospace industry, etc. Ruthenium is also used in jewelry and crafts, where it acts as ligature additives in jewelery alloys.
The ruthenium by itself is very hard, but brittle and difficult to melt, and thus to make jewelry of it is problematic. At the same time by the physico-chemical, decorative and durability characteristics ruthenium is ahead of many metals and in jewelry it easily competes with platinum or gold.
Ruthenium coating is not less popular than rhodium. After the thinnest (a few microns) layer of ruthenium, deposited by electroplating, it is able to give any metal surface super durability. Ring, treated with ruthenium, is not afraid of scratches, chips, deformation, corrosive chemicals, and fountain pen soldered on ruthenium is truly timeless.