The colour in this highly translucent piece of fluorite is not unform throughout the stone. Often known as the world's most colourful mineral, fluorite occurs in many colours but red, purple, green and yellow tend to be the most common. When void of impurities it's usually colourless.
Fluorite is well known for exhibiting different zones of colour within the same crystal. These stones are often referred to as rainbow fluorite.
Relatively soft and fragile, fluorite will chip or fracture easily so must be handled carefully. It's also quite heavy. Its colour is not stable so will fade if exposed to bright sunlight for long periods of time. For this reason it shouldn't be positioned close to a sunny window or left outside.
Fluorite is a common rock-forming mineral that occurs in many part of the world. Just a small number of "rock-forming minerals" makeup the vast majority of all rocks on Earth.
A lovely piece of rough green fluorite that's really much nicer than it looks in our photos.