Rainbow Obsidian Ring A Carved These stones are 8mm and

These stones are 8mm and are set into a gold plated adjustable sterling silver ring

The stones are approximately 10mm and are set onto a stretchy elastic cord

Weight: 21oz

Height with stand: 7

Cacoxenite

Rainbow Obsidian Ring A Carved These stones are 8mm andRainnbow obsidian is a type of obsidian that has a rainbow like appearance due to light reflecting off of mineral inclusions. It's a naturally occurring glass that's formed when lava cools quickly. How it's formed Lava from a volcanic eruption cools rapidly when it reaches the Earth's surface The rapid cooling prevents large mineral crystals from growing, resulting in a glassy structure Microscopic mineral inclusions, often magnetite nanoparticles,