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Topaz

Topaz is the birthstone of November (Yellow Topaz) and December (Blue Topaz). Blue Topaz is the anniversary gemstone for the 4th year of marriage.

For the Egyptians topaz was a very powerful amulet against harm, because they believed that topaz was a gemstone colored with the golden glow of the mighty sun god Ra.
Topaz The Romans associated topaz with Jupiter, who also is the god of the sun. Legend has it that it dispels all enchantment and helps to improve eyesight.

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. It was said to cure insomnia, asthma, and hemorrhages.

Topaz sometimes has the amber gold of fine cognac or the blush of a peach and all the beautiful warm browns and oranges inbetween. Some rare and exceptional topaz are pale pink to a sherry red.
.The most famous topaz is a giant specimen set in the Portuguese Crown, the Braganza. There is also a beautiful topaz set in the Green Vault in Dresden, one of the world's important gem collections.

Color
Brown, yellow, orange, sherry, red and pink topaz is found in Brazil and Sri Lanka. Pink topaz is found in Pakistan and Russia. Today we also 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 colours described as blue to greenish-blue or emerald green. Blue topaz has become a popular alternative in recent years for those who prefer faceted stones.

Topaz - Main Characteristics

ClassificationMineral
Hardness (Mohs Scale)8
Molecular formulaAl2SiO4(F,OH)2
CompositionNeseosilicate.
Crystal ShapeHexagonal.
Color/SpectrumBroad gamma.
Atomic (Crystal )Structure Basal
Index of Refraction1.6
Density (Relative)2.64 - 2.65
Light interactionVitreous
UsesJewelry, rings, ornamental, decorative.

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