A black, glass -like rock also known as the reflection stone, (as you can see your reflection in it, thus the name) volcanic glass or the Witches Mirror. An ideal stone for scrying and divination purposes due to its black shiny colour. Good for working with past lives, protection, removing negativity in general and working during the dark and waning moon phases. A powerful cleanser of psychic smog, clutter and debris. 7-9 grams tumbled stone.