๐ Carbonate is a secondary mineral of copper, made up of basic copper carbonate.
It occurs in crystals, generally thin, gathered in tufts or rosettes; spreading in a massive or encrusting manner.
๐
๐จ๐ซ๐ฆ๐ฎ๐ฅ๐ ๐๐ก๐ข๐ฆ๐ข๐๐: Cuโ(COโ)(OH)โ
๐๐ฎ๐ซ๐๐ณ๐ณ๐ (๐๐จ๐ก๐ฌ): 3ยฝ - 4
๐๐ข๐ฌ๐ญ๐๐ฆ๐ ๐๐ซ๐ข๐ฌ๐ญ๐๐ฅ๐ฅ๐ข๐ง๐จ: Monoclinic
๐๐ฎ๐๐๐ง๐ญ๐๐ณ๐ณ๐: Sericea, Terrosa, Adamantina
โณ The name malachite derives from the Greek ฮผฮฑฮปฮฌฯฮท, meaning "mallow", due to its green color. The oldest malachite mines, intended for the extraction of copper from it, date back to 4000 BC in the Sinai Peninsula and 1700 BC in Wales. Greeks and Romans wore malachite amulets as a symbol of protection from injury.
Throughout history it was widely used in painting (under the name ๐ท๐ฆ๐ณ๐ฅ๐ฆ ๐ฎ๐ฐ๐ฏ๐ต๐ข๐ฏ๐ฐ), jewelry, sculpture and artistic decoration.
๐งช Malachite is formed following the supergenic alteration and oxidation of primary copper minerals. It is frequently associated with azurite, goethite and calcite. The green color is due to the presence of copper ions (Cuยฒโบ) in the malachite crystal lattice and to the action of ionizing radiation, which induce the formation of the color center: [CuOโ]ยฒโป.
๐ The main deposits of malachite are found in the Democratic Republic of Congo, Australia, France, Arizona and above all in the Urals, where massive extraction has however caused its exhaustion. In Italy some smaller deposits are found on the Island of Elba and in a few regions of the North.
๐ฌ The base of the football World Cup is made of malachite.
