Logic, Intuition, rational thought, perception. Great for ideas and creative expression. Helps with self-esteem, inadequacy and fear and with communicating feelings. Also good for endurance. Helps calm unrest and over-sensitivity. Allows you to be true to yourself and stand up for your beliefs. Brings harmony and solidarity to groups. Trust and companionship. Clears electromagnetic pollution.
 
1 supplied approx 10-20mm. Size, shape and colour will vary as in all natural stone.