In recent years millions of carats of white topaz has been irradiated to turn it blue and has found its way onto the world market. From pale aqua-like blue (sky), through a rich electric blue (Swiss) to a deep metallic blue (London), these stones have found popularity with the jewellery buying public. Early fears that the irradiation process left stones with dangerously high levels of radiation have been assuaged by the rigorous testing of the stones before they reach the market place.
00000Blue topaz is a stone for those of a creative nature, being especially useful for writers. It is also supposed to aid alignment with one's higher self.

Group - Topaz   

R. I. - 1.63-1.64 

Hardness - 8