1, Laokeng jadeite is characterized by small grains, fine texture, sufficient water head, high transparency and strong luster. Old pit jadeite is older than new pit jadeite, with fine and hard texture, compact structure, pure and uniform color, full head, glassy luster and good transparency, mostly translucent to transparent.
2. Laokeng jadeite is characterized by fine internal crystals and uniform crystal size. In addition, the texture of Laokeng jadeite is pure, and the cracked cotton lines are rare, with high transparency and sufficient water head. Generally speaking, the overall quality of Laokeng jadeite is still relatively good, and it is one of the more popular jadeites on the market at present.
This kind of jadeite is often transparent, but it is not caused by the entry of water. Water can't enter the emerald crystal. The quality of jadeite in Laokeng is better because of this relationship.
What does Jade 303 mean?
AU750 indicates that the gold content of the jade bracelet is 75%. 178ct means that the weight of gold is 178ct. Finally, do303ct indicates that the gold content on each bead is 0.3 carat.
Natural A-grade jadeite, a kind of bean green, is a kind of jadeite variety with relatively large output. It's worth about a few hundred yuan.
Generally, 33 will be written on the appraisal certificate of a piece of jadeite, which means pure natural jadeite without artificial treatment and unchanged internal structure.
A30 only identifies his 1 name and code, and has no other meaning. In order to find all kinds of jadeites and their prices more conveniently, the store will put various labels on them.
What is the quality of the jadeite mine in Mandalay, Myanmar?
The jadeite original stone in Myanmar is quite good. The raw materials of jadeite are all mined from mines, and all have thick stone skins, which have not been polished or partially polished. At this time, it is collectively called jadeite original stone. The jadeite original stone refers to the unprocessed natural mineral, which does not mean that it must be jadeite.
Emeralds in Myanmar are not cheap and risky. Because you don't know the goods, you will be cheated at any time. Emerald is different from many other commodities, especially in Wacheng. The jade market is dominated by sellers, with quotations all over the sky. If you don't know the goods, you may pay ten times or even a hundred times the price of jade itself at any time. There is a kind of jade bracelet on the market with polishing powder.
The quality of Burmese jadeite depends on water, color, carving and shape. The higher the transparency, the better the clarity, the brighter the color, the more exquisite the carver, the more regular the shape and the higher the price. Conversely, the lower the price.
Jade is a kind of jade, belonging to jadeite, but not the same as jadeite. Emerald is a fibrous aggregate composed of pyroxene minerals, mainly jadeite minerals. Besides jadeite, it also contains sodalite, omphacite, amphibole, feldspar, chromite and limonite.
Wacheng has convenient land and water transportation, and it can be directly reached from Kunming. Every year, many jade merchants come to Wacheng to purchase, and most of the jade miners and businessmen in Myanmar live in Wacheng. The jade processing industry in Myanmar is very backward, and the finished product that can be called an advantage is egg noodles.
Is density 3.33 a good jade?
The density of jadeite is 33 to 34 per cubic centimeter. Common jadeite, 33 must be jadeite. However, the reference density alone cannot guarantee the identity of natural jadeite A, and other test results should be combined to judge whether it is natural or not.
Statistically speaking, the density of jadeite is about 33 grams/cubic centimeter, so the general appraisal certificate will write 33. Because the composition of jadeite is not fixed, it is a collection of nano-pyroxene minerals mainly jadeite. Therefore, different types of jadeite usually have different densities.
Generally speaking, the density of jadeite is 30 ~ 36, and the general appraisal certificate indicates 33, with a large proportion and a refractive index of about 66. If you hold the jade of the same size in your hand, if it is natural, you will obviously feel the pressure, while the fake jade feels very light.
The density of jadeite is 30-36 grams per cubic centimeter, and the identification certificate usually marks the density of jadeite as 33 grams.
This is definitely not? Besides jadeite with a density of 33, there are many kinds, such as amphibole. In addition to density, the important characteristic of jadeite is hardness. Compared with other rough stones, jadeite has high hardness, the same density and many kinds of jadeite with different hardness. In addition, refractive index, crystal internal structure and so on should be considered.
The density of jadeite is 33, which shows that jadeite is rich in emeralds and good in emeralds. The refractive index is 66, indicating that jadeite is a pure natural jadeite ore. The relative density of jadeite is 30-36, generally 33g/cm 3. The refractive index is 65-67, and there is a fuzzy shadow boundary near 66 on the refractometer.
Where is the best jade?
The workers in Jieyang are the best in carving technology, so many high-grade jadeites are from Yangmei in Jieyang. The quality of jadeite is evaluated by the type, color, carving and defects of water.
Myanmar: Myanmar is the main producer of jadeite in the world and the only producer of gem-grade jadeite. Therefore, jadeite is also known as Burmese jade. From a professional point of view, more than 95% of jadeite in the world is produced in Myanmar.
Russia is also rich in mineral resources, so Russia is also one of the main producing areas of jadeite. There are various raw materials of Russian jadeite, some Russian jadeite will also enter the jade market in China, and even some varieties will be similar to those in Myanmar, so it is difficult to distinguish them.
Most of the high-quality jadeites in the jewelry market come from the Quaternary and Tertiary conglomerate layered jadeite deposits in the Ulu River (River) basin in northern Myanmar. They are mainly distributed in Kachin State in northern Myanmar, with a length of about 240km from north to south and a width of 170km from east to west.