Obsidian is natural glass. It has been used for jewellery, mirrors, tools and more for centuries.
Obsidian is most often mined in Hawaii, Japan and Java. However, it can be found in all areas with volcanic activity. Dark pieces found in Arizona and New Mexico are called Apache Tears.
Obsidian is not a birthstone.
Obsidian is not an anniversary gemstone.
Obsidian is often used for gaining clear insight into problems.
Sharp shards of obsidian were formed into arrowheads. In ancient times, obsidian was made into mirrors.
In ancient times, obsidian was made into mirrors.