Have you ever seen Aventurine this shade of green before?  This palmstone from Zimbabwe is a dark green.
 
Dark Green Aventurine initiates a deep purification of the physical body, especially the vital organs.
 
Aventurine energy permeates the body and then focuses on your most distressed organ, filling it with healing energy and encouraging it to release its accumulated disharmony. Once this organ has been uplifted, your next most distressed organ receives Aventurine's attention. Thus, organ by organ, Aventurine helps heal and purify your entire body.