Black Agate, like all black stones, is a grounding and protective crystal. It gives a calming peace that helps those during a period of bereavement. Black Agate gives inner strength to move on and is also very helpful in keeping the peace in stressful households. 
Black Agate alleviates problems of the bones and joints, mobility issues and pain of the shoulder or neck.  It keeps the body in balance, especially as one ages.
946g 130mm x 80mm x 115mm approx