Amethyst element impurities), and the presence of trace elements, which result in complex crystal lattice substitutions. The hardness of the mineral is the same as quartz, thus it is suitable for use in jewelry. Amethyst occurs in primary hues from a light pinkish violet to a deep purple. Amethyst may exhibit one or both secondary hues, red and blue. The best varieties of amethyst can be found in Siberia, Sri Lanka, Brazil and the far East. The ideal grade is called "Deep Siberian" and has a primary purple hue of around 75–80%, with 15–20% blue and (depending on the light source)
HMS Amethyst (1903) March 1914 from Vice Admiral Carden. On 24 April 1915 "Amethyst" and her sister-ship embarked soldiers and landed them by trawler at Y beach on the northwest shore of the Gallipoli Peninsula in the early morning of 25 April. She supported the British troops ashore with gunfire until 27 April by bombarding enemy positions. By mid-morning on 27 April, with the situation on the beach described as "desperate", surviving troops were beginning to come back on board - "Amethyst" took on board over 250 officers and men, many of them wounded. Over the following days, "Amethyst" continued to provide support