Rainbow Aura Black Obsidian Crystal Towers are a beautiful addition to any crystal collection. They are made by bonding titanium and gold to the surface of a black obsidian crystal, giving it a rainbow effect and making it a titanium aura point. The unique appearance of these crystals is not only aesthetically pleasing, but it also has a powerful energy that promotes positivity and protection. The flame aura in these crystals also represents energy, passion, and motivation. These aura points are a great tool for meditation, as they help to clear negative energy and provide a calm, serene energy for the mind, body, and spirit. Whether used for decoration or for spiritual healing, Rainbow Aura Black Obsidian Crystal Towers are a must-have for any crystal enthusiast. Small : 20 to 100g Medium : 100 to 200g Large : 200 to 300g X Large : 300 g and up