Illustrated with pictures and texts, we teach you how to identify jadeite. This method is pretty cool, did you know?

However, today's jade market is full of mixed goods, and it is difficult to distinguish between real and fake jade, so it is very necessary to master certain knowledge of jade jewelry identification! Of course, there are many methods of jade identification on the Internet. What I want to introduce to you today are some very simple and useful identification methods that do not require any instruments. They are very useful. Let’s learn together.

The reason why jade is different from other jewelry and jade is because of its unique characteristics, which are also the best way to identify jade:

1. Jadeite

Jadeite texture is the unique characteristic of jadeite, which can distinguish it from other similar jades and imitations.

Qiu Yuchan Jewelry

The jadeite nature of jade is due to the fact that the jadeite crystals that make up jade have two complete groups of structures. When jadeite breaks under the action of external force, the grains on and near the fracture surface break along the cleavage under the action of intense mechanical stress to form a cleavage surface. Because the cleavage surface is flat and smooth, it can produce mirror reflection of light, and many sparkling small faces can be seen under the light, like mosquito wings.

In jadeite or the unpolished surface, the jadeite is very obvious. There are three main forms of jadeite:

1. Snow flakes: flake-shaped, more pronounced glittering surfaces, generally composed of the surfaces of coarse-grained, short columnar jadeite particles;

2. Mosquito wing: small, elongated, shiny surfaces formed by the cleavage planes of medium-coarse columnar to long-coarse columnar jadeite particles;

3. Sand stars: Point-shaped, fine, shiny surfaces composed of the cleavage surfaces of fine-grained columnar or fibrous jadeite particles.

After jade has gone through processes such as polishing and waxing, it is not easy to see its jadeite properties, especially the sand star-shaped jadeite properties are particularly difficult to observe. On the surface, when the snowflake-shaped cleavage surface is not completely polished, it will form a slightly concave surface with many small pits, which has a clear boundary with the surrounding area and can still be seen in a certain direction. If it is further polished, it will form the so-called orange peel effect.

2. Beans

"Beans" refer to the gaps between the grains of jadeite. When the gaps between the grains are obvious, the "bean" phenomenon will appear. This situation often occurs in a structure where the grains are not tightly embedded, the boundaries are straight, and the particles are coarse.

Bean-shaped features mostly appear in jadeite with poor transparency, but there are some jadeite that, although the grains are coarse and different grains can be distinguished, the granular features can be seen, but the boundary lines are blurred. This is because effects such as heavy grains make the particles closely combined and at the same time improve the transparency. In addition, you can also look for the boundaries of the grains on the polished surface of jade to identify the size and shape characteristics of the particles. The granular characteristics are also a identification mark of jade.

3. Orange Peel Effect

The polished surface of jade is often uneven like orange peel. The fundamental reason for this phenomenon lies in the nature and structure of the jadeite crystals that make up jade. The orientation of the jadeite particles in jade is different. For example, some have cylindrical parallel surfaces, some are oblique, and some are vertical. In terms of hardness, the particles exposed on the straight cylindrical surface have the greatest hardness, the particles exposed on the parallel cylindrical surface have a lower hardness due to physical development and other reasons, and the particles exposed on the oblique cylindrical surface are in between the two. When polished using conventional polishing techniques, the softer particles are more abraded, resulting in a concave surface.

Therefore, the orange peel effect of jade is not just the uneven polished surface, the orange peel also has subtle and characteristic phenomena.

The significance of the orange peel effect depends on two factors: one is the nature of the jade structure. The smaller the particle size of the jadeite that makes up the jade and the tighter the bonding, the less significant the orange peel effect will be. The other is the polishing method and quality. The orange peel effect will be significant with floppy disk polishing, but the opposite is true with hard disk polishing. The higher the hardness of the polishing powder, the less obvious the orange peel effect; the more abundant the polishing, the more obvious the orange peel effect.

The size and shape of the orange peel can be used to identify the characteristics of the jadeite structure, which is an important feature to distinguish similar jades from counterfeits.

4. Contents

Jade is made of pure nature, and pure natural things are bound to have impurities, so the presence or absence of impurities is also a very important way to judge whether jade is A-grade jade. There are three main types of impurities in jade:

1. White cotton-like

Stone flowers are lumpy white flocs in jade. From a gemological point of view, stone flowers may also be inclusions in jade, that is, they may not be jadeite, but other mineral components, or they may be healed cracks. These white flocs resemble reed fluff and are characterized by radial dispersion.

2. Black Spot

The black spots are the remnants and illusions after the iron ore is absorbed by jadeite. They often appear black under reflected light, and the black spots are generally isolated and scattered.

3. Black Block

The black blocks are black, but appear as gray-brown spots when transmitted light. The black silk or black bands in jade are composed of alkaline amphibole or omphacite. The effect of alkaline hornblende must also be treated in different situations. If the jadeite with green as the main body contains black hornblende, these black or dark minerals will have an adverse effect on the appearance of the jadeite and should be treated as a clarity characteristic. However, if these dark minerals are contained in jade products with colorless or white as the main body, it will not have a negative impact on the appearance of the jade, but will increase the value of the jade products. At this time, these dark stripes are not regarded as clarity characteristics, but as color elements.

5. Color Root

Jade has a variety of colors, and each color has its own characteristic color distribution characteristics. The green color of jade is evenly distributed and often in vein shapes, called color heel, which is one of the important characteristics of jade.

6. Gloss

Gloss is the phenomenon of surface reflection. The luster of a gemstone is affected by the degree of surface polish, the refractive index of the gemstone and the characteristics of the surface structure. Jade with excellent polishing and fine texture can have a glassy luster due to its smooth surface; jade with a rough texture has a weaker luster due to the influence of the gaps between the grains and the orange peel effect, and has a sub-glassy to oily luster. Some jadeite that has been acid-filled or acid-washed has improper polishing technology, resulting in an orange peel effect and micro-gap development on the surface, resulting in a waxy luster that is weaker than oily luster.

The method to observe the luster of jade is: under normal lighting conditions, observe the reflectivity of the jade surface and the clarity of the image with the naked eye. Jade with glass luster can form a clear image. For example, for a clear image of a light or window, jadeite with a waxy luster can only present a vague image.

These are the characteristics of jadeite, and are also relatively simple, quick and effective ways to identify the authenticity of jadeite. Friends can use these methods when buying jadeite to identify the authenticity of their jadeite to avoid buying B-grade jadeite, C-grade jadeite, and B+C jadeite!

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