Obsidian is a mystical black stone, or actually volcanic glass meaning it is not a crystal. Its alluring darkness often is accompanied by a silver or golden sheen (or even rainbow coloured) due to tiny bubbles forming when the glass was created.
It is heavily associated with protection and warding, and is thought to reflect evil. One may also find it an excellent tool in divination as it is psychically protective and when flat, can be used as a gazing mirror.
This tower weights 268g and is about 13cm in height.
You will receive the exact crystal pictured