You are looking at a Green Aventurine skull. The skull is 6.7 inches long, from front to back.

Aventurine seems to enable abundance and brings good luck and money, joy, balance and clarity. Universal love, truth and prosperity are traits we can gain by working with Aventurine. This stone is good to have when job interviewing, selling products, or play lotto. This stone helps to stable financial matters, especially when times are tough. Keep it around when paying bills, making business transactions or gambling. It is considered the stone for gamblers. Spiritually, Aventurine protects the heart, enhances creativity and working with spirit guides. Green is the color of healing and Aventurine, as a member of the quartz family, has a concentrated ability to dissolve emotional blockage. It's a particularly effective crystal for emotional healing and is especially helpful when worn for this purpose or placed on the heart center during Chakra balancing. It helps to balance the emotions, and is one of the best stones to wear or carry during stressful periods. It can also be used in crystal layouts when stress is internalized in the solar plexus area. It is also used with stones which have a seemingly more harsh energy. Aventurine is often referred to as the all-purpose healer. This means not only that it is considered by many to be good for physical disorders, but that it is healing on all levels. It helps us to find solutions to life's problems.