Black Obsidian aids spirit contact and the gift of prophecy. Obsidian is a good choice for a dowsing pendulum as it enhances the psychic connection and is also protective and grounding as pendulums go and perfect for divination.
This pendulum is about 2 inches long, 9/16th in diameter, and weighs about 16 grams.
No two gemstones are alike. Expect slight variations from the photo.
Dome pendulums do not have a chamber.