Rare Rainbow Obsidian Star Crystal

Rainbow Obsidian Crystals.
These are beautiful and very rare crystals. Its rarity is down to the specific conditions nature needs to create its formulation.
As the lava cools rapidly, the minerals need to align perfectly to create the beautiful rainbow effect.
This intricate process only takes place in limited geological environments, making rainbow obsidian a rare find indeed. Isn't nature wonderful. 
Rainbow Obsidian requires direct light to see their true colors. Colours may not show up under normal lighting.
Please check the measurements you order sizes are between 4cm-6.5 cm in length.
Please also keep in mind that all crystals are unique in their own way. No crystal is the same they vary in height, width, and weight and rainbow effect.