Amethyst even if the iron concentration is low. Natural amethyst is dichroic in reddish violet and bluish violet, but when heated, turns yellow-orange, yellow-brown, or dark brownish and may resemble citrine, but loses its dichroism, unlike genuine citrine. When partially heated, amethyst can result in ametrine. Amethyst can fade in tone if overexposed to light sources and can be artificially darkened with adequate irradiation. Amethyst was used as a gemstone by the ancient Egyptians and was largely employed in antiquity for intaglio engraved gems. The largest Ancient Egyptian amethyst mines are located at Wadi el-Hudi and those mines may be the
Amethyst, Princess of Gemworld debut in the rebooted The New 52 DC Universe as the main character of the new "Sword of Sorcery". This lasted until May 2013, when "Sword of Sorcery" was cancelled. Princess Amethyst, the daughter of the ruling House of Amethyst, was orphaned by Dark Opal of the House of Opal. Following the death of Amethyst’s parents, the witch Citrina whisks her away to be reared in safety by the Winston family on Earth. At the age of thirteen, Amethyst is attacked by Dark Opal. After her return to Gemworld, Amethyst discovers her magical powers and gains the appearance of an