Obsidian

Obsidian can refer to one of the following:
*obsidians - author of Am I Pretty Again Ranma's Declaration of Womanhood
*ObsidianX - author of Reflection in the Water
*Obsidian - by Graham Chambers
*Obsidian - by Wordcounter: At the closing of the Age of Night, Agarash, Demon Lord of Darkness encapsulated his remaining powers in seven crystals forever to be known as Doomstones and three runes in obsidian that his legacy might live on even as he was being defeated in the war(Cut off) Description from Fanfiction.net (Link subsequently deleted)
==References==