Malachite green an extreme amount compared to the average 5 ppb discovered in fish. After a period of two years, an increase in lung adenomas in male rats was discovered but no incidences of liver tumors. Therefore, it could be concluded that malachite green caused carcinogenic symptoms, but a direct link between malachite green and liver tumor was not established. Malachite green Malachite green is an organic compound that is used as a dyestuff and controversially as an antimicrobial in aquaculture. Malachite green is traditionally used as a dye for materials such as silk, leather, and paper. Despite its name the dye
Italian submarine Malachite Crete, "Malachite" sighted a British cruiser escorted by a destroyer. She launched two torpedoes at the target, but they both missed her by the stern. From 3 to 14 July 1941 she patrolled north of Ras Azzaz. At 20:00 on July 3 "Malachite" sighted a large cruiser (possibly ) escorted by two destroyers, and immediately launched a torpedo. There was an explosion heard, but there is no reports of this attack in British post-war documents, although some believe an escort was hit. From September 25 to October 5 1941 she patrolled off Ras Aamer. From January 20 to 27, 1942