Traditional jade identification methods mainly include the following:
1. Identification method of water: drop a drop of water on jade. If it is dewdrop-shaped, it is real jade.
2. Touch method: If it is real jade, it feels cold and lubricated by hand, which is based on the thermal conductivity and oiliness of jade.
3. Observation method; Observe jade in a bright place and distinguish it according to its natural structure and color. Generally, real jade is natural in color and contains impurities more or less.
4. Tip identification method; The real jade on the tip of the tongue is astringent, but the fake jade is not.
In addition, you can also observe with a magnifying glass, mainly to see if there are cracks, and the value of cracks is greatly reduced.
Extended data:
Generally speaking, a beautiful stone is jade, and jade is the essence of stone. Buddhism, Taoism and Confucianism, called the relic of the earth, are spiritual stones with the ability to ward off evil spirits, which are widely popular in various regions of the world (especially in East Asia).
Broadly speaking, as long as it is beautiful, it is jade, including lantian jade, Hetian jade, xiuyan jade, Myanmar jade, Nanyang dushan jade, serpentine jade, Shi Ying jade, crystal stone, bloodstone, calcite jade, lapis lazuli, agate, coral, glacier jade, marble jade and other precious stones. A symbol of good luck, used in women's names, meaning good. Most of them are good names. Enter a woman's name, which means she is handsome.
The quality of jade can be divided into 10 grades, and each grade can be subdivided into three grades: upper, middle and lower.
How to distinguish these kinds of jade articles? Expert introduction: A-type jade refers to natural jade that has not changed its original quality except by hand carving, that is, it is often said that it is genuine, and it will generally be appraised by the National Jewelry Appraisal Center;
Class b goods refer to some inferior jade with many impurities, which are removed by pickling and then injected with transparent liquid to make it more crystal clear and beautiful; Class C goods are washed to remove impurities and dyed, which is completely artificial jade.
Experts said: "because the internal structure of the latter two has been changed, there is a gap of dozens of times in value with A-grade jade. At present, there is a widespread practice in the market to pretend to be natural jade with B and C commodities. "
So how do consumers identify the authenticity of jade ornaments? Introduced several methods to everyone.
One is color.
That is, the color of jade should be uniform, not different in tone, but also bright in color, not mixed with other variegated colors. Experts also stressed that you should not observe the color under the light, because the visual effect of jade color under the light is much better than that under natural light.
The second is the bottom.
It means that jade should be transparent without impurities and black spots. If it is a class B or C commodity, there are often small crystals in it.
The third is water.
That is to say, the surface of real jade will be very smooth and moist, and there will be no capillary cracks. If it is pickled, there will often be lines such as "small thin Mao Mao sticking to woolen coat".
The fourth is work.
Is the process of making jade articles. If you look carefully, the real top grade jadeite has its own unique shape, while B and C are mostly made of machine molds, and the shapes are almost the same.
References:
Baidu encyclopedia-jade