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 of the miners and gold prospectors. After the initial publication, the author continuously added new stories to the collection, such as the so-called "mountain fairy tales" in 1942, "Stories of Germans" () in 1943, a series of stories about Russian steel-makers and coiners in 1944–1945, "Stories of Lenin" () in 1944–1945, and others. Every edition of the collection ended with the dictionary of unusual words and concepts. "The Watchhouse on Dumna Mountain" () was Bazhov's essay which served as an introduction to the first edition of "The Malachite Box". It contained some information about the life, industry and culture at