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It exhibits high clarity with few inclusions, so topaz gemstones can be examined by the naked eye and found to be "eye clean", which means that no imperfections can be seen. Imperial topaz is transparent to translucent. Sometimes, the color of imperial topaz can gradually fade over time, when exposed to sunlight. Nowadays imperial topaz is defined more widely to include yellow, pink, red, lavender-pink and peach-pink. Originally, imperial topaz was classified as orange with red dichroism. There are also deposits in the Urals of Russia.īuying Imperial Topaz and Determining Imperial Topaz Gemstone Value Imperial Topaz Origin and Gemstone SourcesĬommercially mined imperial topaz comes from Ouro Preto in Brazil. Precious beryl has indistinct cleavage, thus distinguishing it from imperial topaz, which displays perfect cleavage. Yellow chrysoberyl is harder than imperial topaz and has a higher refractive index. Spinel can be told apart from topaz by its cubic crystal structure. Yellow and pink phenakite can be distinguished from topaz by its trigonal crystal structure. Apatite, fluorite and zircon are gems that can appear in pink and yellow, but they are softer than topaz. Yellow imperial topaz can also be identified by its hardness citrine and brazilianite are softer. Ruby and sapphire are harder, at 9, and kunzite and tourmaline are softer. Imperial topaz can be distinguished from other pink gems such as kunzite, tourmaline, sapphire and ruby by its hardness (8 on the Mohs scale). Brazilian imperial topaz can range in color from bright yellow to deep golden brown and is sometimes even violet. Imperial topaz is yellow, pink or pink-orange. Imperial topaz was traditionally considered to be orange with red dichroism, (this means that when tilted in the light, imperial topaz can appear red or orange), but nowadays it is more widely defined as yellow, pink, red, lavender-pink and peach-pink topaz. Imperial topaz is less common than other types of naturally occurring topaz, which makes it more valuable. This is because the tsars claimed exclusive rights to the pink topaz gemstones that were mined in Russia. Considered to be the color of the setting sun, imperial topaz gets its name from the Russian tsars of the 17th century. It is the most sought after natural topaz. Imperial topaz is also known as "precious topaz".
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Buy Natural Imperial Topaz from GemSelect About Imperial Topaz - History and Introduction
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