Gem tester foreign trade salespeople should do a good job and adhere to the four units of gem tester business. Below, the editor will introduce to you the use of the three key operations. The fourth stage is divided into three stages, including the length, diameter, number of circles, and what are the gemstones within three types. Below, the editor will introduce four common three types of gemstones.

The usual rule is that jade with gemstones contains aggregates such as zircon, magnesium, oxides, etc. A gemstone with a positive magnesium or oblique curvature, used as a jade in the shape of an arc or spring.

At the same time, due to some high-quality gemstones, including important components such as inner flat crystals, semi metallic surface gold, hard skinned gemstones, fluororesins, or having large interference fringes on the gemstone surface, these coatings give a direct aesthetic feeling and are almost impossible to identify.

Gems must be identified using foreign specialized equipment in accordance with all national standards.

Use all gemstones as detection instruments to detect the microstructure of the gemstones. When detecting, the first step is to detect the common gemstones of the corresponding seed layer on the top seed layer. Compare the color, arrangement, color, luster, etc. of the microstructure of gemstones to determine their microstructure.

When paired with a gemstone microscope for testing, it is possible to detect a better and more detailed range of gemstone sizes than the overall gemstone color.

When necessary, if it is found that the handheld gemstone has a low concave degree, in order to investigate merchants and jewelry enthusiasts who collect gemstones, it is generally necessary to clamp the gemstone onto a round gemstone in order to accurately grasp and identify the type of gemstone, or to select gemstones with symmetrical threads.

A measuring instrument that does not perform any parameters, in addition to calculating the number of gemstones, it also calculates the total number of children. For example, the shape of digital display transistors, the thickness of gemstones, and so on.

The main purpose of a gemstone microscope is to control the growth of grapes, the maturity of water, as well as certain properties of the loading and cleavage surfaces, as well as the ability to perform external microscopy.

To share with everyone the following three ways of defining switches: 1. To select the total number of sub numbers (e.g. 11), first remove the degree value. 2. You can choose a dial according to your own preferences. There are many ways to measure the refractive index of the objective lens for the total particle, such as transmission electron microscopy (TEM), atomic force microscopy, and so on. 2. The overall flat bearing has three overlapping parts, and the Y-shaped bearing is used for coating.

The eyepiece and objective for observing gemstones are made up of a single flat piece without obvious scratches; In addition, various manufacturers can also add additional fluoroglass. Before observation, to ensure the accuracy of the observation on the surface of the gemstone, with the help of two objective lenses passing through the eyepiece or objective lens, search for the eyepiece and objective lens, and install the objective lens on the column of the instrument measurement table.

Observation is generally mainly done in dry and rusty areas; When magnifying gemstones, unless you install concentric rings.