I know, I'm so into etsy right now. I'm really into this one shop that seals very natural textures into resin jewelry. Very Jurassic Park. Now, this shop started to make pieces with carborundum. I instantly fell in love because 1. it's black 2. the textures are out of this world (or very much so a part of our world ^_^ hahah)
Such fun pieces. I've been wanting something from here for a while.
You might be familiar with this shop's moss rings like the one pictured below.