Rainbow Obsidian Ring A Carved 7mm orbicular sea jasper cab

7mm orbicular sea jasper cab set into an adjustable sterling silver ring with a wire wrap-style design

The stone is set into an adjustable sterling silver ring with gold plating and zircon accents

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

Strawberry Quartz cabochon set in an adjustable gold plated sterling silver band

Golden rutilated quartz cabochon set into an adjustable sterling silver ring

Rainbow Obsidian Ring A Carved 7mm orbicular sea jasper cabRainnbow 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,