翡翠的等级之分（The grade of jadeite jade）.doc

翡翠的等级之分（The grade of jadeite jade） [jade] the grade of jade Since ancient times, people revered jade, jade is the most advanced peoples favorite. There are people trying to mention color to cater to the preferences, the so-called (landscaping) is the color difference of semiprecious stones with artificial method or add pigments or pigments do not add processing, so that the original unwelcome appearance, improved to a charming appearance, improve the sense of value, the real value is not increased, but the price has increased a lot. For example, early in the diamond waist dipped in blue water solution, picked up after drying, in the diamond waist surface attached to the blue pigment, because the light reflects blue meaning, reduce yellow tone, and improve the diamond color grade. This method is simple, but also easy to fade, and as long as 10 times magnification can see the flaw - - attached to the surface of the diamond on the surface of the granular pigment. With the progress of science and technology, processing more sophisticated methods more difficult to detect (such as radiation will be yellow brown shades of diamonds into blue or green diamonds), and such as heat treatment, diffusion heat treatment can be colorless or blue gem low grade milk color, change into high priced ruby or blue Blaupunkt color or gold yellow sapphire. All kinds of processing methods emerge in an endless stream, and this is not the only one, impossible to guard against, jade is no exception, according to the treatment method and identification method of beautification (a), (B (goods), C (goods), D goods) are described as follows: A, a (Allowing): waxdip treatment Jade is opaque to translucent gemstone, what we see is emerald green, white light in the sun or part of green light reflected by the absorption of jade, jade color to achieve color (dark), color (Shenyang), color (positive) and color (uniform) of these four elements, there must be dense and smooth the surface can be like a mirr