Topaz
Today we have blue topaz, which has a pale to medium
blue color created by irradiation. Pale topaz which is enhanced to become blue
is found in Brazil, Sri Lanka, Nigeria, and China. In early 1998, a new type of
enhanced topaz made its appearance, the surface-enhanced topaz, with colors
described as blue to greenish-blue or emerald green.
Topaz is a very hard gemstone but it can be split with a single blow, a trait it
shares with diamond. As a result it should be protected from hard knocks.
Wear topaz only if you wish to be clear-sighted: legend has it that it dispels all enchantment and helps to improve eyesight as well! The ancient Greeks believed that it had the power to increase strength and make its wearer invisible in times of emergency. Topaz was also said to change color in the presence of poisoned food or drink. Its mystical curative powers waxed and waned with the phases of the moon: it was said to cure insomnia, asthma, and hemorrhages.

