Definitions by Xenos Nassar

Obsidian 

In the realm of hard rock and heavy metal music, to be Obsidian, a band must straddle the line between rock and metal, while having psychedelic, occult, & doom elements.

Uncle Acid and The Deadbeats, Jex Thoth, and Blood Ceremony have all, at one point, been Obsidian.

Obsidian by Xenos Nassar August 6, 2012