Add a touch of "dark and moody" to your plant shelf with these ultra-sleek Tumbled Obsidian stones. While they look like something plucked from a high-end gallery, these beauties are actually naturally occurring volcanic glass, formed when lava cools down in a serious hurry.

Note: Images are a representation of the stones you will receive. Each rock is unique, and small variations in color, size, banding, etc. is to be expected.