A goods are both natural texture and natural color. Identification methods mainly focus on the following three points. (1) Look before you leap. Because of the relationship between mineral resources and exploitation and the specific situation of people's large demand. At present, there are few good Burmese jadeites on the market. In particular, there are few varieties with green color and bright ground color.

Look at the structure of A-grade jadeite: The crystal particles in A-grade jadeite are clear in outline, compact in structure, solid in texture and interwoven with each other, belonging to a fiber interwoven structure. Jade of B and C: The texture is very transparent and loose, and the grain boundaries are blurred.

A fluorescence test can be performed. When the jadeite is irradiated with ultraviolet rays, it is a jadeite that does not emit light or has only a small amount of point fluorescence, but it is a glowing jadeite, and the whole is very bright.

Whether jadeite is A or not can be seen whether it is shiny or not. The surface of A jadeite is glassy with high refractive index and looks bright and oily. The luster of non-A grade jadeite is a little dull, waxy and looks dry.

A piece of jade is dense and heavy, so it will feel heavy when held in your hand. The density of fake jadeite is generally lower than that of A jadeite. Look at the certificate of jade. All A-grade jadeites sold have appraisal certificates, which record a series of data such as the origin, weight and hardness of jadeite in great detail.

How to distinguish a piece of jade?

1, bubble method. Put the jade bracelet in a glass basin filled with water, and illuminate the bracelet at the bottom of the glass basin with a flashlight. If the edge of the jade bracelet reflects white light, it can be judged that this bracelet is a glue bracelet or a B bracelet. Jade bubbles do not reflect white light.

2.a jadeite has strong permeability, and the color zone is affected by color roots with low permeability. B jadeite is foggy and turbid, but the color of B jadeite and the permeability of colorless area have no obvious change. Moreover, judging from the cleanliness of jadeite, jadeite of B goods is generally white. Distinguish grade a jadeite from jadeite quality.

3. To identify Emerald A, you can put it in a transparent glass basin filled with clear water. Then prepare a flashlight to illuminate the bracelet from below, and you will find that the fake jade will reflect white light, while the A jade will not change. You can also soak jadeite in water with washing powder and take it out for about 40 minutes.

How to choose commodity futures account?

Open a well-funded and reputable account. If you mainly do commodity futures, you should focus on the futures companies that have deep research and development capabilities in the spot, so that futures companies can provide customers with the best value futures reports because of their understanding of the spot.

Futures account. The futures account is registered and opened in real-name registration system, with no other conditions. When we choose a futures company, we can directly submit an application for opening an account without charging any fees. General commodity futures can be traded directly by opening a futures account, while special varieties need capital verification to open an account. Place an order.

Choose which futures company to open an account with. It will be related to whether the account holder can happily invest in the futures market next. If you want to choose a good futures company, you must make a comprehensive investigation to see whether the company is legal, formal and powerful, and make a detailed investigation and understanding of the commercial reputation of the futures company.

Futures account needs to bring his ID card and bank card (Chinese, agricultural, industrial, construction and exchange) to the futures company, and the process is the same as that of ordinary futures account. Copy or scanned copy of bank card of account opening certificate.

How to identify jadeite as A goods?

1, which can be used for fluorescence test. When the jadeite is irradiated with ultraviolet rays, it is a jadeite that does not emit light or has only a small amount of point fluorescence, but it is a glowing jadeite, and the whole is very bright.

2. Identify a piece of jade from the boundary of jade color. There is a clear boundary between the color area and colorless area of jadeite of A goods, and jadeite with natural color exceeding the standard is usually extremely expensive. B The color of jadeite is too natural after chemical dyeing, but it is not bright when the color is dark. Distinguishing grade a jadeite from its permeability.

3. Looking at the structure, the structure of goods A is clear and the structure of goods B is vague. In the light, the structure of goods A is clear, and the structure of goods B is fuzzy, and the cotton inside also gives people a sense of divergence.

4. Whether jadeite is A goods or not depends on whether it has luster. The surface of A jadeite is glassy, with high refractive index, and looks bright and oily. The luster of non-A grade jadeite is a little dull, waxy and looks dry.

5. Water density measurement method: This method is a very practical method to identify the authenticity of jadeite A, which is effective for the identification of most jadeites, and is also a method often used by Mocha jadeite.

How to tell if jadeite is A How to tell if jadeite is A

(3) Observed by naked eyes under the light, the texture is delicate, the color is soft and the stone lines are obvious; Slight impact, crisp and pleasant voice; Holding it in your hand has a heavy feeling, which is obviously different from other parts of the stone. ★ Color-the key factor in jadeite quality evaluation system. The requirements for color are purity, richness, uniformity and harmony.

A fluorescence test can be performed. When the jadeite is irradiated with ultraviolet rays, it is a jadeite that does not emit light or has only a small amount of point fluorescence, but it is a glowing jadeite, and the whole is very bright.

There is a clear boundary between the color area and colorless area of jadeite of A goods, and jadeite with natural color exceeding the standard is usually extremely expensive. B The color of jadeite is too natural after chemical dyeing, but it is not bright when the color is dark. Distinguishing grade a jadeite from its permeability. Emerald has strong permeability, but due to the influence of color root, the permeability of color zone is low.

Today, I will take you to know the identification method of A-goods jadeite! Look at the color root of jadeite. The so-called color root is in jadeite. We can see some obvious green stripes or dots, gradually transitioning to lighter colors. Then, these obviously striped or dotted green parts are the color roots of jadeite.

Whether jadeite is A or not can be seen whether it is shiny or not. The surface of A jadeite is glassy with high refractive index and looks bright and oily. The luster of non-A grade jadeite is a little dull, waxy and looks dry.

How to see if jadeite is A goods?

Commodity 1 and a are natural in texture and color. Identification methods mainly focus on the following three points. (1) Look before you leap. Because of the relationship between mineral resources and exploitation and the specific situation of people's large demand. At present, there are few good Burmese jadeites on the market. In particular, there are few varieties with green color and bright ground color.

2. Looking at the structure, the structure of goods A is clear and the structure of goods B is vague. In the light, the structure of goods A is clear, and the structure of goods B is fuzzy, and the cotton inside also gives people a sense of divergence.

3. The jadeite bubbles of A goods do not reflect white light. A cargo jade is pure natural jade, genuine, flashlight will not reflect white light. B bracelets reflect white light. B bracelets are jadeite jade that has been washed, bleached, coated and polished.