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 people used to say about the lucky workers that they "knew the words" and had certain helpers. The geography is well known because it is specified in the stories. Bazhov mentions real locations such as Sysert, the Polevskoy Copper Smelting Plant, the Gumyoshevsky mine, the villages Kosoy Brod and Krasnogorka, the Ryabinovka river. Mythical creatures in "The Malachite Box" are either anthropomorphous (primarily female) or zoomorphic. The animals that appear in the stories and have zoomorphic attributes are lizards, snakes ("The Great Snake"), cranes ("Dikes of Gold"), ants ("Zhabrei's Path"), swans ("Yermak's Swans"), cats, the deer. All these creatures, with