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 was presented to the author for his 60th birthday on 28 January 1939. Several test copies were published in January. A special deluxe edition, decorated with malachite, was sent to the 1939 New York World's Fair. The mass market edition published in autumn of the same year. The book was an instant success. It has been republished many times. Overall, twenty three editions of the stories were released from 1941 to 1945. The second edition of the collection was released by the Moscow publishing house Sovetsky Pisatel in 1942. The book was awarded the Stalin prize. The third edition of