Malachite Malachite Malachite is a copper carbonate hydroxide mineral, with the formula CuCO(OH). This opaque, green banded mineral crystallizes in the monoclinic crystal system, and most often forms botryoidal, fibrous, or stalagmitic masses, in fractures and spaces, deep underground, where the water table and hydrothermal fluids provide the means for chemical precipitation. Individual crystals are rare but do occur as slender to acicular prisms. Pseudomorphs after more tabular or blocky azurite crystals also occur. The stone's name derives (via , , and Middle English "melochites") from Greek Μολοχίτης λίθος "molochitis lithos", "mallow-green stone", from μολόχη "molōchē", variant of μαλάχη "malāchē", "mallow".
The Malachite Box are popular. The characters of the Ural Mountains folklore such as the Mistress of the Copper Mountain became very well known after their appearance in Pavel Bazhov's "The Malachite Box". In the 1930s the Communist Party of the Soviet Union greatly encouraged the interest in the past of the country and the people. The Party paid a lot of attention to the development of the historical science. Maxim Gorky initiated the publication of such books as "The History of Factories and Plants" (). The initiative was supported by the Communist Party. History books and various historical fiction titles were published