As the polished face of this labradorite mineral catches the light it becomes beautifully iridescent. The breathtaking colours are not part of the stone but are caused solely by the reflection of light.
The back of this labradorite stone which is unpolished also exhibits some iridescence as it reflects light from certain angles. Labradorite is well known for this optical phenomenon which is correctly known as schiller or labradorescence. In a dark corner labradorite can look like a relatively uninteresting piece of rock but as soon as it interacts with light, that quickly changes.
Labradorite is a variety of the mineral feldspar named after the Labrador coast in Canada where it was first discovered. A relatively hard material which makes it easy to work with, it's widely used for decorative purposes and fine grade material is always in high demand.