Associated with the Crown chakra
Predominantly found in Africa, this stone is said to be over 3 Billion years old and contain primeval microorganisms.  It's energy is stablizing and will transfer feelings of protection, balance and relaxation.  Excellent for meditiation and allowing you to release negative feelings and thoughts that may be blocking your connection.  Can also be useful in battling nightmares.  Because of it's age, protective qualities, and connection to the Earth, it's also a great stone to carry into Journey work.
 
This listing is for 1 tumbled stone intuitively chosen by me.