Fluorite is an incredible crystal and one of our favourites. It comes in a huge variety of colours, from striking blues, greens, pinks and purples, to softer clear and yellow shades. The UK has two famous Fluorite deposits, Blue John Fluorite in Derbyshire is the only place in the world this blue, purple and yellow banded Fluorite is found; and Weardale in County Durham produces stunning green fluorescent cubic Fluorite. The largest ever Fluorite cube was found in Russia, it weighed 16 tonnes and was 2.12 meters wide. The ancient Egyptians and Chinese carved Fluorite into decorative objects, but it was too soft to be used in jewellery.