Grounding
 
It can absorb negativity and is known to encourage and enhance the feeling of brotherhood and goodwill, thus is a wonderful stone to have in a setting where meetings or group work take place. Also in a home to encourage bonding, family warmth and support. 
 
Due to the nature of tumbled stones, each is unique so may vary slightly from the picture. 
Our small pieces vary from 2cm to 3cm at their longest point.