Aventurine is a healer of the heart. Balances the male/female energies, emotions, physical and auric bodies. A great harmonizer, dissolving negative emotions and thoughts.

Birthstone of: Aries, Libra.
 
Chakra: Heart.
 
The crystal chips can be viewed in the hand for sizing in picture 2, but will vary in size (smaller or larger) as they are a natural formation.
View picture 2 for sizing in the hand.