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 Furthermore, Pavel Bazhov indicated that his stories can be divided into two groups based on tone: "child-toned" (e.g. "The Fire-Fairy", "Silver Hoof"), and "adult-toned" ("The Stone Flower", "Marko's Hill"). Denis Zherdev divided the stories into "gold" and "malachite" series, which begin with "Beloved Name" and "The Mistress of the Copper Mountain" respectively. In the mid-1930s Sverdlovsk Publishing House decided to publish the collection "Prerevolutionary Folklore of the Urals" (). In the summer of 1934 the folklorist Vladimir Biryukov was offered to make such a collection. The historian Andrey Ladeyshchikov became its chief editor. From August to December 1935 Biryukov collected