Rainbow Obsidian - Color: Black. Displays green and purple iridescence depending on the light. - Diameter: Approximately 16cm (±0.5) - Width: Approximately 8.3mm, very beautiful beads. Rainbow obsidian is believed to be like a mirror that reflects the owner's inner self, helping to deepen self-understanding. It is also believed to absorb negative energy and promote mental stability. It is said to "purify negative emotions" by absorbing negative feelings such as anxiety and anger accumulated in the heart, bringing mental stability. Obsidian is a natural glass formed by the rapid cooling of magma during volcanic activity, characterized by its sharp cutting edge and mysterious black color. Its Japanese name is Kokuyoseki (black obsidian). It has been used for knives and ornaments since ancient times. As a power stone, it has stone words such as "concentration," "mystery," and "blooming potential," and is said to have the meaning of warding off evil and assisting in spiritual growth. Thank you for viewing.