Learn to identify jadeite with the naked eye in five minutes!

There are three tricks to identify jadeite with the naked eye. Once you learn these three tricks, it will be easy to determine the authenticity of jadeite. The prerequisite for identifying jadeite with the naked eye is to know how to use light correctly to observe it. Not all light is conducive to the observation of jadeite. Colored light can easily interfere with and mislead the identification of jadeite. The light that is more suitable for observing jadeite includes natural light coming in from north-facing windows, white light from fluorescent lamps, and white light from flashlights made of multi-head light-emitting diodes.

Trick 1: Look at the gloss

Why can experts tell whether jade is real or fake just by looking at it? Here is the secret trick --- look at the gloss. Looking at the luster is just like looking at the "gem light" of an antique. This identification feature is very effective in distinguishing between A and B grade jadeite.

The luster of natural jadeite (commonly known as "A-grade" jadeite) is a typical glass luster, with a clear and moist feeling.

Bleached and filled jadeite (commonly known as "B-grade" jadeite) has a worse luster, often with a false or even resinous luster, and is rather dull.

Tips for observing gloss: Move the jadeite back and forth and left and right when observing, and feel the intensity and uniformity of the reflection through the reflected light on the surface.

Trick 2: Look at the structure

Can it be easily identified from the structure whether it is jadeite or other jades that can easily be imitated as jadeite? Is it A-grade or B-grade?

There are three tricks to read the structure.

1. The first form: "Cang Sheng Wing"

The unique mark of jadeite is the jadeite texture, also known as "fly wings", which is an important basis for experts to identify it with the naked eye. "Fly wings" refers to the irregular star-shaped or flake-shaped flashes that always appear on the surface or inside of the planted green.

Phenomenon. Note that it is "irregular star-shaped and flake-shaped flashes", because marble and some jades containing mica will also have flashes, but that kind of flash is regular point-shaped flashes. This point can easily distinguish it from other imitation jade. The following explains why the "fly wing" phenomenon occurs.

The surface or interior of jadeite is a collection of jadeite minerals. Each jadeite mineral is equivalent to a small matchbox. The matchbox has six sides, and each side is equivalent to a small mirror. Mirrors can reflect light, so when light shines on the surface of jadeite jadeite minerals, reflection can occur. That is to say, when we shine a flashlight on Longcui, there will always be star-shaped or flaky flashes on the surface or inside of jadeite. This is the so-called jadeite nature, which refers to the flaky flashes on the jadeite surface of the mineral crystal faces and cleavage faces that make up jadeite. This is the most typical identification feature of jadeite, especially applicable to jadeite rough stones and some coarse jadeite. It is not easy to find the jadeite texture on some jadeite of better quality, but you can always find the jadeite texture if you carefully look from different angles and directions.

How to see the "fly wings" of jadeite?

When observing the properties of jadeite, you must pay attention that the light is shining downward from the top of the jadeite, and cannot use transmitted light. Note that the light must move and shake; it cannot shine on one place and remain stationary, otherwise the phenomenon will not be obvious.

There are also certain tips when observing "fly wings":

① Observe on the reflective surface of the jadeite;

② The observation area should be avoided as far as possible from the area with better polishing;

③When observing a jade bracelet, you should observe the inner circle.

2. The second method: "micro ripples"

"Micro-ripples" refer to the slightly uniformly uneven appearance of jadeite surface when observed with the naked eye under reflected light. The surface of polished jadeite with relatively coarse grains is composed of mineral particles of uneven hardness. When observed with the naked eye under reflected light, the surface of jadeite will appear slightly uniformly uneven, commonly known as "micro-ripples", like the slight ripples appearing on calm water surfaces. The micro-ripple phenomenon on the polished surface is an important identification feature of natural A-grade jadeite. Microripple is a very vivid expression, which has both intuitive external expression and deep-seated meaning.

Intuitive external performance:

After the surface of jade is polished, it feels very slippery if you don't observe it carefully. It is like a mirror with a curved surface and good curved reflection. A closer look at the reflective surface does not seem to be very smooth, similar to the flat surface of a CD, which appears mirror-like, but can be seen to be uneven upon closer inspection or under magnification.

Deeper meaning: Jade is an aggregate of multiple jadeite particles. The jadeite particles are aggregated in different ways, and are subject to different friction during polishing. When polishing jadeite, some jadeite particles are along the growth direction, and some are perpendicular to the growth direction. Therefore, some particles are easy to polish, and some particles are more difficult to polish. The appearance after polishing is that some places are concave and some places are protruding. If you observe carefully, you will feel the feeling of micro-ripples. Micro-ripples are a typical feature of the surface of natural jade. If the jade is roughly polished, the micro-ripples are not obvious, but if it is well polished, the micro-ripples are clear. There is a smooth transition between the depressions and undulations without any discontinuity. As long as you see micro-ripples, you can be sure that it is natural A-grade jadeite. However, B-grade jade has a loose structure, the pits on the surface do not reflect light, and cracks appear on the surface.

There are no micro-ripples on imitation jadeite.

3. The third type: internal structure

The internal structures of different types of jade are different, so looking at the internal structure is also an effective way to identify the authenticity of jade and distinguish between A and B grade jade. The structure of jadeite is a metamorphic porphyroblastic interlaced structure, commonly known as a porphyroblastic anisogranular structure. That is, jadeite is composed of many small mineral particles, which are granular, fibrous, long columnar, and short columnar, and are arranged in an interlaced manner. The key to seeing Jiancui's structure is to observe it through light. What are the other jade structures that can easily impersonate Peicui?

Here is a brief introduction

(1) The structure of nephrite is a typical hair chain structure, which is actually more like millet, with crystals intertwined.

(2) Serpentine jade, its structural feature is fibrous structure. If it is serpentine marble, it is Shaanxi Lantian jade, which has both serpentine structural characteristics and marble-like structural characteristics.

(3) Quartz jade. There are many quartz jades, all of which have an equigranular structure, which can be easily distinguished from the inequigranular metamorphic structure of Pei Cui. The following are some of the common quartz jades on the market.

①Quartzite. At present, quartzite is often used in the market to impersonate glass-type and ice-type jadeite. The quartzite structure is equigranular with little variation and can be easily distinguished from the structure of Feicui.

In addition, aventurine is a quartzite containing mica, and there are flaky green colloidal mica between the equigranular quartz grains. This can be easily distinguished from the unequal-grained metamorphic structure of jadeite, which has almost no flaky color accents.

(2) Cryptocrystalline chalcedony, commonly known as mare, especially the green chalcedony from Australia, is almost invisible and is very similar to glass-type jadeite. However, upon careful observation, some unique growth lines can be seen. Jadeite is formed by metamorphism and does not have growth lines.

③Dense jade. Mi jade is produced in Mi County, Henan Province and has a granular structure.

④ Amazonite has a typical lattice structure, and its unique blue color can distinguish it from jadeite.

⑤ Fushan Stone has a fibrous and radial structure.

⑥ Grainite has a fibrous and radial structure.

⑦ Dushan jade has uneven color, patchy color and granular structure.

⑧ Kuo Zhaolu Stone, the color is uneven, the green is embedded in the base in dots, black spots often appear in the center of the green, and it has a granular structure.

The internal structure of jade not only plays an important role in distinguishing jade from imitation jade, but is also very important in identifying natural jade (commonly known as "A goods") and jade treated with glue (commonly known as "B goods"). The structure of B-grade jade is loose, and the boundaries between crystal grains are not clear. It does not have the clear porphyroblastic anisotropic structure of A-grade jade.

Trick three: Look at the color

The rich colors of jade make it beautiful. How to identify the authenticity by looking at the color?

1. Type 1: Uneven color with color roots

The color of jade, especially green, is distributed in various forms such as dots, veins, filaments, patches, etc. and is accompanied by color roots. This is one of the effective characteristics for identifying genuine jadeite. Even on a full-color ring, different areas

Domain, its color distribution is also uneven (very few colors are evenly distributed). If the color distribution of chestnut is uniform everywhere, it can basically be determined to be C-grade jadeite. Nephrite, Malayan jade, Aventurine and other jades

The color of the stone is also relatively uniform.

2. Second type: coexistence of secondary colors or secondary yellow tones

① The coexistence of multiple colors, especially secondary colors such as red, yellow, and brown, is a natural jadeite.

evidence.

② When observing natural jade through light, a faint yellow tint can be seen, even in full green or completely colorless jade. This is because there are iron ions in the gaps between the jadeite particles in jade. Therefore, when observing natural jade under white light, you can see a hazy, faint yellow tint on the background of the jade, especially in areas with defects such as cotton. This point is both common and important for confirming the authenticity of genuine jadeite. The color edges of B-grade Pei Cui are blurred, the base is pale, and there is no pale yellow background color.