Malachite green (LMG) is used as a detection method for latent blood in forensic science. Hemoglobin catalyzes the reaction between LMG and hydrogen peroxide, converting the colorless LMG into malachite green. Therefore, the appearance of a green color indicates the presence of blood. In 1992, Canadian authorities determined that eating fish contaminated with malachite green posed a significant health risk. Malachite green was classified a Class II Health Hazard. Due to its low manufacturing cost, malachite green is still used in certain countries with less restrictive laws for non aquaculture purposes. In 2005, analysts in Hong Kong found traces of malachite green
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