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 a crown, as did Yekaterinburg's coat of arms from 1973 to 1991. The early design of Polevskoy's coat of arms (1981) had an image of the Stone Flower. The current version, as well as the flag of the town, features the Mistress depicted as the golden lizard. The Malachite Casket became the symbol of the Urals. "The Malachite Box" is constantly republished, commented and illustrated. Not all stories are equally popular nowadays. The most popular tales were written between 1936 and 1939. Among the later stories, "A Fragile Twig" (1940), "The Fire-Fairy" (1940), "Tayutka's Mirror" (1941), "Ivanko Krylatko" (1943), "That