Buy Aventurine from Crystals By Nature. Aventurine is a form of quartz, characterized by its glistening green hues. The name Aventurine is from the Italian word “a Ventura” meaning “by Chance”. Aventurine is known to generate prosperity and confidence, while promoting the energy you need to face new challenges in your life. Allow the soft green hues of Aventurine bring calmness to your days as you reap its many wonderful healing properties, including: Intuition, Creativity, Leadership, Balancing, Instinct, Personal Growth.