A beautifully polished diamond shaped tumbled stone has been attached to a silver plated cap with ring that will fit most chains and cords. Having been made by nature sizes, shapes and colors will vary.  Green aventurine is a quartz with inclusions of fushite, it is a good ally for teenagers. From a metabolic point of view it favors the growth. It has a positive action on the thymus. This green stone helps against acne-type skin rashes, it helps to get to know each other better and to develop one's personality by being less easily influenced. the green aventurine brings introspection and self Control, it's a good stone for meditation, we can associate it with pink quartz to do a complete work on the heart chakra. This stone calms irritability making you more patient and persevering. It can possibly be used to strengthen the heart and fight against bad cholesterol. It is sometimes used in geobiology to remedy telluric problems, it is then placed in the problematic place so that it neutralizes the electromagnetic and telluric waves.