Rainbow Obsidian Tumble Stone

Obsidian Gemstone meaning Obsidian is associated with Pluto - Greek god of the underworld and keeper of hidden treasure. Obsidian is a grounding stone but also contains a fiery element. It is useful for developing the strength needed to stand on your own convictions against any enemy (hidden or otherwise).
Rainbow obsidian is particularly powerful in meditation to dissolve shock, fear or barriers. It expands your consciousness, sharpens the senses and can help you delve deep into mysterious phenomena and experiences.
Healing properties of Obsidian
Obsidian helps to protect the very sensitive against depression. It is the stone of the soft hearted and gentle people of the world. Use obsidian to help block negativity of any kind. As a black gemstone, it symbolizes self control and resilience. Black stones have protective energies in the sense that black is the absence of light, and therefore, can be used to create invisibility.
Sources of Obsidian
Obsidian can be found anywhere that volcanic activity has occurred. Some of its important sources today are South America, Japan, Mexico, Afghanistan, and parts of the United States. The San Carlos Apache Reservation in Arizona, United States, produces an interesting banded variety of obsidian known as Apache Tears.