Black Tourmaline

Black Tourmaline
An ultimate protector
An effective blocker of psychic attack and ill-wishing
Forms a powerful absorbing shield against toxic energy
Protects against EMF and negativities of all kinds
Connects to the base chakra
Grounds energy and increases physical vitality
Disperses tension and stress
Assists in clearing negative thoughts and promotes a positive attitude
Gridded around the house or open space, disperses and deflects negative energy
From Brazil
 
These are a new batch I got from Brazil.  They are absolutely gorgeous with distinct lines.  They are priced by weight and not necessarily by size.  
 
There are also some individually priced larger pieces online as well.