Obsidian: Obsidian is a natural glass produced in volcanic belts around the world where magma sprayed rapidly cools and hardens. The main color is black, and there are also types of “Rainbow Obsidian” which shows a rainbow shine on the surface, and the “Snowflake Obsidian” with a snow-like white pattern. It has been used in stoneware such as arrowhead since ancient times, since it has become a very sharp cross section when it breaks. Meaning and Effects: Obsidian is said to enhance the power of evil amulets, positivity and spirituality. It is also said to help you balance yourself and overcome trauma, etc.