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 the Spectre on Gemworld in "Infinite Crisis" #2 and survived the attack. She later appears among the magical beings who are summoned to reconstruct the shattered Rock of Eternity in the "Day of Vengeance" Special. Amethyst is seen once again in "Infinite Crisis" #6 where she and other sorcerers pool their powers to summon the restored Spectre to Stonehenge. In the aftermath of Infinite Crisis, all of the other Lords of Order are apparently destroyed by the Spectre, signaling the end of the Ninth Age of Magic. Amethyst is currently the only known surviving Lord of Order in the Tenth