Board Thread:General Discussion/@comment-25465008-20150703231636

Let me quote: "Sardonyx is a variant in which the colored bands are  sard (shades of red) rather than black. Black onyx is perhaps the most famous variety, but is not as common as onyx with colored bands. Artificial treatments have been used since ancient times to produce both the black color in "black onyx" and the reds and yellows in sardonyx. Most "black onyx" on the market is artificially colored. "

So I think Maybe it will be an artificial gem, kind of what they were making with the Weird hand fusion thing whose name I can't remember. And maybe they will introduce it as a little shard from a gem, which may or may not have been Onyx(Not that a Gem ever existed with that name, but) 