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01/11/2011

gemstone varieties

 

Garnet is a ruby 

Plastic wood

, garnet 's English name is Garnet, from the Latin " Granatum" evolved, meaning " like a seed". Garnet crystal and pomegranate seed shape, color is very similar, named " garnet". Common garnet red color, but the species is very wide, enough to cover the entire spectrum of colors. Common garnet because of its chemical composition and confirmed as six, respectively red garnet ( Pyrope ), iron and aluminum garnet ( Almandine ), manganese aluminium garnet ( Spessartite ),jewelry factory  calcium iron garnet ( Andradite ), calcium aluminum garnet ( Grossular ) and calcium chromium garnet ( Uvarovite ).

Brief introduction
  Garnet garnet, also called garnet. As a mineral group collectively, the English Garnet, derives from the Latin Granatum, meaning " granular, the same as the seeds". According to the English transliteration, also known as the" national minorities in stone".

Chinese name garnet, image to describe the mineral characteristics of appearance, from the shape to the color as the" seeds of pomegranate". According to legend, pomegranate tree from the rest of China, known as the " Sabbath Durian", referred to as " interest group", and turn the sound as" pomegranate".

China jewelry industry, the craft name" garnet garnet". " Teeth black (" aunt )" from Arabic Yakut ( GEM ), and because Chang Chengzi garnet red, named garnet.
  For thousands of years, garnet is considered to be the symbol of faith, constancy and pure. People like to have worn, and worship it, not only because of its esthetics value, more important is the gems were believed to have an unbelievable magic power, make people turn calamities into blessings, turn from danger to safety, can keep the position of honor, and has an important Memorial function.

Nowadays, garnet as January birthstone 

Water slide  

, symbolizes loyalty, friendship and chastity.
  Stone Natural Garnet Bracelet garnet with similar gem, the difference between synthetic garnet. With a variety of garnet color similar to ruby,south sea pearls  sapphire, ruby including artificial corundum, topaz, emerald, jadeite, are heterogeneous body, a polarizer can distinguish. In density, inclusions, refractive index, degree of dispersion, fluorescence can distinguish.

Synthesis of Green Garnet garnet with the major difference lies in the internal inclusions and density. Synthesis of green gadolinium gallium garnet, yttrium aluminum garnet, uniform color, flawless, even a small bubble, a red color filter. Density: gadolinium gallium garnet 7.05 g / cm3, yttrium gallium garnet 4.58 g / cm3, are much higher than the natural garnet. In addition, refractive index, dispersion, also have their own characteristics, can be distinguished.

The evaluation and choice of garnet  Stadium seating 
  Garnet evaluation and purchase according to color, transparency, size as the basis. Gem garnet standard requirements: good transparency, bright colors, more than 5 mm in diameter. Green Garnet Gemstone in the international market is very popular, pure, bright color, crystal garnet value is very high. Green chrome vanadium aluminum garnet ( also called Shaeffer Levin stone ) value is very high, the superior of the quality can be compared with emerald. Red, orange red garnet is also very valuable,golden south sea pearls orange orange garnet ( also called Spessartine ) in recent years, prices rose faster.

Garnet is high-grade gem, which belongs to the rare breed green gem. Colors, purity, high transparency varieties are garnet to share. It 's a high refractive index, strong luster, beautiful colors and diverse, is a favorite gemstone varieties. Many countries in the world of the garnet as " January Birthstone", loyal, friendly and symbol of chastity. Westerners believe that the garnet has magical efficacy mend his ways to save him; in the middle, garnet was chosen as the royal family keepsake.
  Garnet evaluation and purchase according to color, transparency, size as the basis. Gem garnet standard requirements: good transparency, bright colors, more than 5 mm in diameter.

In the international gem market, pure, bright color, crystal garnet value is very high. Green chrome vanadium aluminum garnet value of the highest, the superior of the quality can be compared with emerald. Red, orange red garnet is also very valuable. Garnet is now relatively common in cheap one jewel. Colors, purity, high transparency varieties are garnet to share. It 's a high refractive index, strong luster, beautiful colors and diverse, is a favorite gemstone varieties. Many countries in the world of the garnet as " January Birthstone", loyal, friendly and symbol of chastity.

Westerners believe that the garnet has magical efficacy mend his ways to save him; in the middle, garnet was chosen as the royal family keepsake. The Geological Museum of China, possession of a red and orange Spessartine large crystals, weighing 1397 carats, produced in Xinjiang. American Museum of natural history collection of the world's best a brown yellow transparent cinnamon stone ( iron Grossular ), is an intricately carved Christ's head, weighing 61.5 carats, can be above.
  Garnet imitation goods very few, easily respectively.

1, garnet if colour ultra-Yan ultra transparent, if the price is very attractive, easy.
  2, see cotton impurity, garnet out easily have black spots, ice crack.
  In 3, garnet crystal to be heavier than the individual, holding hands in the measure, if the ratio of powder to be light, just be careful.
  In 4, garnet contrast and delicate, appearance feels very smooth, feels very comfortable and oil that is the" glass" think pink.
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