What is the difference between a flashlight for identifying jade and a regular flashlight?

The outdoor flashlight is not too suitable for illuminating jade, and the outdoor attention is to the characteristics of high brightness, waterproof, and long use time.

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Zhaoyu's flashlight is generally concentrating, that is, an inverted flare, which is the opposite of the outdoor one, and cannot have an aperture, while the outdoor is often dimmable.

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In addition, it is best to have the function of adjusting gears, at least two gears, strong light and weak light, strong light is suitable for looking at the original stone, and low light is suitable for ordinary parts.

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The other is the light color, there are three-color or two-color flashlights, don't care about the money and volume to buy more light beads, otherwise you have to choose according to the use.

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Generally, white light should be chosen, yellow light will add color to the jade, so sellers often use yellow light, and there is a gambling on the occasion of the big rough stone, and the ordinary jade white light can be bought.

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The flashlight used by Zhaoyu is generally used with a special battery, with a charger, and ordinary batteries cannot be used. In addition, it is necessary to choose a lighter one to carry around.

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The luminous port of the jade torch is slightly inward, the purpose of this design is to concentrate the light, the inside of the jade torch is designed with a special reflector for concentrating light, so that the flashlight can emit the brightest light in a small aperture range as much as possible, which is conducive to observing the locality; Another difference is that jade flashlights mostly use specially designed LED bulbs, the color temperature is generally more accurate, and ordinary tactical strong light flashlights seem to be white, and there may be a color cast that is not easy to detect with the naked eye, and the light is too dazzling, which is not conducive to observing the surface.

Ordinary flashlights can shine on jade, but this kind of soft light penetration is very weak, and it can only make do with the effect of a few millimeters below the surface, and the details that can be seen will be weakened, only for emergency use, and it is not appropriate to look carefully at the jade.

The flashlight for identifying jade is not much different from an ordinary flashlight, except for the ultraviolet flashlight.

The identification of jade flashlight is mainly to see that it is easy to carry and the light should be strong, and the function of ordinary flashlight is the same.

Ultraviolet flashlight mainly looks at the fluorescent reaction of jade to ultraviolet rays, that is, ordinary ultraviolet flashlights.

The light gathering intensity and penetration of the flashlight are better for identification. Ordinary flashlights have scattered light and a large illumination area.

1. Direct light transmission. Pick up Hetian jade and use the light source of the flashlight to stick to its surface to see its light transmittance. The real Hetian jade has a compact structure and uniform light transmission, showing a smooth light green, while the fake jade has uneven light transmission and is fluorescent green.

2. Look at the structure of oblique shooting. Aim the flashlight at a certain side of Hetian jade, and slowly move it to see the structure inside. True Hetian jade has a delicate texture, and there is a cotton-like flocculent substance inside the jade, while there is no such flocculent material inside the fake Hetian jade.

3. Back shot to see the flaws. Shine a strong flashlight on the back of Hetian Yu, and slowly pan the light to see if there are any flaws inside. Real jade is a natural product with fine impurities or cracks attached to it, while fake jade is clean and flawless on the inside and has small bubbles attached.

No, the quality of jade is generally judged from five aspects: texture, hardness, transparency, specific gravity and color.

1. The texture of jade refers to the degree of fineness and warmth of jade.

2. The jade is delicate, warm and firm, translucent, and lustrous like fat; The stone, on the other hand, is rough and dry, lacks luster, and is mostly opaque.

3. Hardness refers to the ability of jade to resist external forces (such as pressing, carving, and grinding). The higher the hardness, the more difficult it is to process, and the better the quality of the jade.

4. Although the hardness index of jade can be known by detecting its internal crystal structure by the instrument, the hardness method is generally used in operation. The hardness of common jade in China is between 4 and 6 degrees, which is higher than the hardness of copper and lower than that of glass.

5. The surface of jade is moist or oily. Since light rarely penetrates deep into the jade, it is often felt that the jade is translucent.

Identification of jade stones.

1. Look at the cracks.

When there is an internal tear, there will be an ordinary dark reaction of the flashlight source when the flashlight source is translated, or there will be an uneven refracted light change reaction.

2. Look at the structure.

The correct usage is to light at an angle of 60-70 degrees, so that it is easier to see the structure clearly. According to the structure of the material, determine what material it is, whether it is natural or synthetic. Use the transmittance to judge the depth of some strings (slurry), the depth of cracking and the density of cotton.

3. Look at the texture.

Taking Hetian jade as an example, due to its good light transmittance, the jade flashlight will be directly exposed to the surface of the jade, and it can be found that its light presents the characteristics of relative concentrating, while if it is a rock or glass product, it is relatively astigmatism. Slowly panning the flashlight, if the light is evenly transmitted, it can indicate that the texture of the jade is relatively uniform, and vice versa.

4. Look at the thickness of the particles.

Taking Hetian jade as an example, the identification of the jade flashlight is aimed at the parallel plane of a certain surface of Hetian jade (try to irradiate the skinless side), at an oblique angle of 45 °, about 3 to 10 cm away from the surface of Hetian jade, or slowly move parallel or far away to move a single point to see the flocculent structure clearly, multiple points of irradiation, according to which the delicacy of Hetian jade and the thickness of the particles can be identified.

5. Look at impurities.

Taking Hetian jade as an example, the identification is carried out with a flashlight close to the back of Hetian jade, and then slowly translated, so as to identify whether there are impurities in the structure of Hetian jade, and when there are impurities, there will be dark spots inside Hetian jade.

1. To a certain extent, you can see whether the jade has been coated with wax and impregnated, to see if there are heterogeneous cracks or impurities inside the jade, or how permeable a jade is, but if it is true or false, it is too overestimated to overestimate the role of a strong light flashlight.

2. Of course, the role of strong light flashlight is still there, so it is best to choose one with good light concentration, high brightness and strong penetration, the better the brightness, the clearer the internal texture of the jade.

3. It is best to have a flat-headed flashlight, jade is a precious object potato, and the pointed one is often easy to scratch or scratch the jade, which is not too beautiful to be happy.

4. There is also the light color of the strong light flashlight, which is commonly used is white light, purple light and yellow light, each of which has a certain role, such as purple light is easy to see whether it is glued, white light looks at the texture or defects, etc., yellow light has strong penetration, suitable for materials with He Fengpi.