Black obsidian is a naturally occurring volcanic glass formed when felsic lava cools rapidly with minimal crystal growth. Renowned for its smooth, glossy surface and razor-sharp edges when fractured, it has been utilized for millennia to craft cutting tools, weapons, mirrors, and decorative objects.
This 18x12mm stone has been set into an adjustable sterling silver ring with floral details. It will best fit sizes 7 - 9
