Types and identification of jade
Do you know how many types of jade are there? Let Xiaobian tell you now! Jade has a total of 13 emeralds, nephrite, turquoise, lapis lazuli, serpentine jade, hibiscus stone, opal, agate, chalcedony, wood and stone, quartzite jade, Dushan jade jade. Among them, jade has jade, nephrite, serpentine jade, chalcedony, quartzite jade, and Dushan jade. With so many kinds of jade, do you know how to identify it? Let's let Xiaobian give you a brief introduction!
Type of jade
1, jade: also known as jade, according to the type is divided into A goods, B goods, C goods, B + C goods four jade.
2, nephrite: according to the type of white jade, sapphire and white jade, jasper, ink jade, topaz.
Note: Xinjiang Hetian jade refers to the nephrite produced in Xinjiang.
Sheep fat white jade, also known as "white jade", "羊脂玉", is the top of nephrite, extremely precious. The white fat white jade is a gem-quality material in Hetian jade, which is the best of white jade in pure white color.
3, Southern Jade: produced in Guangdong.
4, Qilian jade: produced in Gansu.
5. Kunlun jade: The quality of jade is similar to that of jade jade. It is produced in Kunlun Mountain, Xinjiang.
6. Taiwanese jade: The quality of jade is good, and the products are loved and produced in Taiwan.
7, Korean jade (Gao Liyu): The picture of jade species is a high quality serpentine jade.
8. Bao Wenyu: It is often used to pretend to be “Gao Liyuâ€, which is also a high-quality variety.
9, chalcedony: green chalcedony, jasper (non-soft jade jasper), blood drops.
Green Chalcedony: The world's finest green chalcedony is produced in Australia, Sri Lanka and hardness.
Jasper: After dyeing, it can be impersonated with lapis lazuli, internationally known as Swiss lapis lazuli.
Blood Dropstone: Ornamental stone.
10, sheep fat white jade, also known as "white jade", "羊脂玉", is the top of nephrite, extremely precious. The white fat white jade is a gem-quality material in Hetian jade, which is the best of white jade in pure white color.
11. Quartzite jade: Dongling Stone, Miyu, Guicui, Jingbaiyu.
Dongling Stone: Indian chrome mica quartzite is a popular mid-range gemstone that can be used as a jadeite.
Miyu: Named after it is produced in Mi County, Henan Province, it is a quartzite containing 3-5% sericite. At present, the dense jade is dyed and can be used as a jade.
Guicui: Produced in the Dachang area of ​​Qinglong County, Guizhou Province. It is a fine-grained quartzite containing aged stone. Used to make low-end trinkets. Can pretend to be jade.
Jingbaiyu: It is a white quartzite with fine texture and lustrous oil. It can be pretending to be jade after dyeing.
12, Dushan jade: the types of jade are divided into colors according to color and type: white jade, green jade, yellow brown jade, purple alone.
13. Serpentine jade: Xiuyan jade (岫玉): It is named after it was produced in Xiuyan County, Liaoning Province, and is one of the famous jade in Chinese history.
Identification of jade
The method of identifying true jade: look, listen, test.
Look: mainly look at crystal transparency, true jade transparency, oil luster;
Listen: The sound of true jade is crisp, but the sound is dull;
Test: True jade is drawn across the glass, leaving scratches on the glass, and the jade itself is not damaged.
1, color: jade experts attach great importance to color. Color is not only an important criterion for evaluating the quality of jade, but also the main basis for the classification of jade. Although the color of ä½˜å¤ªç¿ is not the best among all kinds of jade, its unique rich colors are also cherished.
Compared with jadeite in other regions at home and abroad, the color of ä½˜å¤ªç¿ is more than a series of colors. There are three basic colors, such as white, cyan and emerald, and some transition colors, such as blue-white, gray-white, bean green, dark green, etc. The type of jade is in the industry. The legend of the white jade in the game is the game. Bai Yuzhi said. Jade is a rare jade. It is an extremely precious high-grade jade.
2. Hardness: Hardness is one of the important signs to identify ä½˜å¤ªç¿ . The hardness of a mineral is a mechanical property of minerals against the intrusion of other objects. There are usually two types of hardness:
(1) Relative hardness, or Mohs hardness, is a kind of scoring hardness.
(2) Absolute hardness, also called indentation hardness. It is measured according to the weight that can be withstood on the surface of the mineral. The Mohs hardness of ä½˜å¤ªç¿ is between 6.9 and 7.2, and the varieties are slightly different. Generally, the hardness of white jade is slightly larger than that of jade. Hardness is generally used as an important symbol for the division of gems and jade in the jewellery industry. The hardness of gemstone is generally above 7.3 degrees in Mohs. The hardness of jade is generally 4 to 7.2 degrees in Mohs. The hardness of ä½˜å¤ªç¿ is large, the polishing property is good, it is easy to store, and has a certain collection value.
3. Density: Density is the weight per unit volume of jade. The weight of ä½˜å¤ªç¿ is determined by a small body weight sample, which is 2.65 to 2.85. There are slight differences between the different varieties, white jade is 2.85, white jade is 2.65, and jade is 2.75.
4. Transparency: Transparency is the extent to which jade allows visible light to pass through. This is mainly related to the absorption of light by jade. The mineralogy of jade is generally divided into four types: transparent, translucent, micro-transparent and non-transparent. It is a micro-transparent body. Under normal aggressiveness, it can transmit light, but it cannot see the image.
5. Gloss: Gloss is the ability of jade to reflect light.ä½˜å¤ªç¿ äº® is a glass luster. This kind of luster is not strong, it is not weak, that is, there is no crystal inspiration of glare, and there is no waxy texture of weak light, soft and delicate, and the oil can be seen.
The above is Xiaobian's knowledge about the types and identification of jade, and I hope to help you.
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