Zebradorite

Zebradorite  
Known as the “stone of cooperative effort”
The stone of the soul’s memory
Assists with retrieval of past life memories, soul purpose and soul contracts
Provides protection and transmutation of negative energy
Can bring peace during times of emotional or physical trauma 
Works with the solar plexus, as it can enhance courage, emotional strength and self-will
From Madagascar
 
These are priced by weight and not necessarily by size.