A powerful filtering stone, absorbs microwaves and cell phone 
emanations and protects against electromagnetic pollution; 
soothing stone; calms brain and nervous systems.
 
Benefits: Heals and opens heart & throat chakras; dissipates 
negative energy and blockages within the nervous system; beneficial 
for osteoporosis, tooth decay, calcium deficiency and calcium deposits.  
 
Uses: Wear to protect against microwaves; place near computer or
 tape to your cell phone.