1, I often go to that jade chain with a tank007 flashlight, and the effect is quite good. Amateurs like me can see jade with this flashlight.
2, just use Hakka dialect, TK360 is a special flashlight for jade identification. The light source is CREELED (yellow light and white light optional) imported from the United States, with strong penetration. It is a powerful tool to identify jade and antiques, and also a good helper for experts, jewelry shopkeepers and antique lovers to identify.
3, generally 150 lumens to 300 lumens is the most suitable, too bright is not good, too weak is not good, if the domestic jade hand electricity, the brand of the probe is more professional.
4. Generally, the lumen of the flashlight that shines on jade is between 240 and 350, and the color temperature of the flashlight that identifies Leihuoyu with lumen of 280,3900-4100 is the color temperature of the noon sun, which can make the identification effect more accurate.
5. Magelite, a famous American flashlight brand, was founded in 1979. Maglite's products are mainly made of anodized 606 1 aluminum and have variable focal length beams. Maglites come in many colors, such as black, silver, blue, red, green, purple, gold and different finishes.
... jade, jade and other gems? Are you sure? Which other brand of thermal conductivity meter has better quality?
The thermal conductivity of jade is similar, so the thermal conductivity meter can't distinguish all kinds of jade. Moreover, the value of jade lies not only in authenticity, but also in color. Similarly, the difference between jade brick material and royal material can be five or six zeros, so it is recommended not to buy a thermal conductivity meter to detect jade.
Magnifier zircon is very similar to diamond and is the best substitute for diamond. The identification method is that zircon has polarization and large birefringence. Observing the processed zircon prism surface with a magnifying glass of 10 times, it can be seen that the bottom edge line has obvious ghost, but the diamond has no ghost phenomenon.
Then use the Mosan stone instrument to distinguish diamonds from Mosan stone, using the same method as the thermal conductivity instrument.
To identify the authenticity of jadeite, a thermal conductivity meter can be used. After the jade is laid flat on the table, turn on the switch of the thermal conductivity meter and point the metal contact at the top of the thermal conductivity meter at the jade surface. If there are five lights on the thermal conductivity meter, it means that jade is real.
Emerald: There are purple, red, gray, yellow, white and other colors, but green is the most expensive. It is a famous specialty of Myanmar, a neighboring country of China. Coral: Red and white, it is a kind of benthic coelenterate fossil, which is produced in Taiwan Province Province, China with very good quality. Beads: pearls (seawater pearls and freshwater pearls) and cultured pearls (seawater pearls and freshwater pearls).
See whether it is double-sided carving or single-sided carving, whether the technology is exquisite, whether the content is novel and rich, and the cultural connotation of carving; There is also a good polishing to see if it can reflect the oiliness and luster of jade. Agate is a kind of nephrite with high transparency, but it is colorless, so it is the only one allowed to be colored.
Who can tell me what to use for the jade authenticity tester?
1. Three instruments can be used to identify dyed jadeite: 1) Charles filter. Under the observation of Charles filter, the green color of dyed jadeite appears pink or red. 2) Infrared spectrum analyzer. Infrared spectrum analysis shows that the red area of dyed jadeite presents a wide absorption band. 3) High power microscope.
2. The instruments used to identify jadeite include electron probe, infrared spectrum, Raman spectrometer and other high-tech instruments, as well as spotlight flashlights and hand-held magnifying glasses.
3. 1. Use a specific gravity balance: Now, high-precision electronic balances are used to measure density. The density of jadeite measured by hydrostatic method (density method) is 34g/cm3(+0.06, -0.09), which is an important index to distinguish jadeite from other jadeites of the same kind.
4.TANK007 has a special flashlight to identify jade. High brightness, good light concentration and strong light transmittance. The most important thing to appreciate jadeite is to look at the texture inside jadeite. The more light gathered, the stronger the effect. Small size, easy to carry around. Is the best companion for treasure hunting.
Which institution is reliable for Guangzhou jadeite appraisal?
Guangzhou is an active city in jade trading. There are six authoritative appraisal institutions with national qualification certification, generally ten yuan each, and an appraisal certificate is issued. The specific address and telephone number can actually be Baidu-Guangzhou Jewelry and Jade Appraisal Center, and there will be results.
Hello, jadeite can be identified in many places in Guangzhou. I know that the nearest to Huangpu is the Guangdong Jewelry, Jade and Precious Metals Testing Center, which is located in the comprehensive testing building at No.751Dongfeng East Road. The telephone number is 876215987694189-820.
Identification of jadeite can go to the local jewelry and jade quality supervision and testing center, which is more authoritative. In addition, in some jade crystal wholesale distribution centers, such as Sihui, Donghai and other cities, there will also be gem testing institutions.