Topaz Crystal

Posted by admin on February 2, 2010

Topaz is one of the favored gems by jewelers and the general public alike.

Like other gemstones, its recognition can be assigned to its colours, and the orange-yellow type or Imperial Topaz is the most valuable and most dear sort of topaz. Also, the pink varieties are the most typically requested in the sector.

It’s also recognized as the birthstone for Nov . This gem can be discovered in the states of Pakistan, Japan, Sweden, Mexico, Afghanistan, and Brazil as well as in the US. The name topaz has Greek origins. It originated from the Greek word “topazos,” meaning to find. It’s also the name given to an island found underwater Sea, which was claimed to be concealed and tough to find. This island was the source of topazes during the the past, which was expounded that big yellow stones of topaz might be mined in this island. Though it was later thought that what the traditional period regarded as topaz was actually a yellowish olivine. In the Middle Ages, this term was employed for labeling all gemstones colored yellow. Characteristics of Topaz Like other gemstones, topaz has an express chemical composition. It is made of aluminium fluorohydroxyl silicate.

Its appearance is semi-transparent to clear. Though a pure topaz is seen as clear, it usually has impurities, which lends it its colour of wine or straw coloured.

Other colours available for topazes are green, blue, pink, white, yellow, and grey. After heating a yellow topaz will turn a reddish-pink. When irradiated, this gem changes to a light shade of blue. The hardness of Topaz has been measured at eight primarily based on the Mohs scale. Its gravity is about 3.4-3.6. Topaz as Jewellery Topaz has been utilized in jewelries and is one of the favourite gemstones for centuries. Jewelers these days make topazes that show pearly colours. They do this by trying a layer of titanium oxide to the stone thru the method of physical vapor deposition. The most famous of this creation is named as the Cryptic Fire Topaz, which name the company Azotic Coatings patented in the late 1990s. Because it’s the birthstone for Nov , topazes became one of the favourite gifts given to anyone whose birthday falls on Nov , and the most bought colour of topaz is the blue topaz. Topaz not only found its way into being one of the fave stones incorporated in gold and silver jewelries, but this valuable stone has made its way into watches and other accessories. The stones from Siberia slowly fade in color on extended exposure to daylight. Stones as these are suggested to be kept in dark areas at every point. This fading type is usually not considered fascinating by purchasers so caution should be taken when buying topaz. To date, the largest topaz ever excavated was tagged as El Dorado, which was discovered in Brazil in the year of 1984. The El Dorado weighed a heavy 6.2 kg and is a known collection of the UK imperial family.