Tumbled Nugget, Pocket Stones 2 Per Order Dark Green Aventurine is one of our more fascinating gemstones. Light and Dark Green Aventurine are essentially the same stone, but the abundant dark green flecks in the Dark Green variety give it a few unique properties. It is these flecks that work to dispel disharmonious energies from each of the body’s weakest organs in order of need. Unlike other gems, Dark Green Aventurine’s wave-like energy rides into the body on the breath. Then it goes to work.