1, directly look at the texture and richness.
The light source of flashlight is close to the surface of jadeite, mainly depending on the texture of jadeite. The strong light flashlight shines directly on the surface of jadeite, which is translucent, and the halo is relatively concentrated, while the halo is relatively astigmatism when it shines directly on the mixed products of quartzite, marble and glass.
When the direct flashlight moves slowly, it can identify whether the texture structure of jadeite is uniform. When the flashlight moves slowly, the light transmittance of jadeite is uniform, indicating that the structure is uniform and the light transmittance is uneven, indicating that the structure uniformity of jadeite is not good.
2. Flashlight oblique illumination is an important means to identify the fineness and density of jadeite particles.
The glare angle of flashlight is different, the distance between strong light source and jadeite is different, and the illumination mode is different, so the identification results are different.
To identify the particle thickness of jadeite, you only need to hit it horizontally with a strong flashlight at a 45-degree angle, and aim at the parallel surface of jadeite at a 45-degree oblique angle (try to illuminate the skinless surface).
Irradiate at a distance of about 3 ~ 10cm from the jade surface, or move slowly in parallel or far and near. It is advisable to irradiate from a single point and multiple points to see the flocculent structure clearly, so as to identify the fineness and particle thickness of jade.
3. Backlighting with a strong flashlight is an important means to identify whether jadeite has hidden impurities or cracks.
When identifying, use a strong flashlight to cling to the back of jadeite, and then slowly translate it to identify whether there are impurities or cracks in the jadeite structure.
When there are impurities, black spots will appear in jadeite. When there is an internal crack, there will be a common dark reaction of the hand-held light source or an uneven refractive light change reaction when the hand-held light source is translated.
The above is Bian Xiao's explanation on how to see the planting water of jadeite raw stone through the light. I hope I can help you. For more knowledge of jadeite original stone, please pay attention to Qiao Cuixuan!
How to look at jade with a flashlight?
This flashlight is not a flashlight for our daily lighting, but a strong flashlight for jewelry.
When purchasing jadeite original stone, many people will be equipped with some special tools, the most common one is a strong flashlight, which can be used to observe the characteristics of jadeite more clearly.
Under the strong flashlight, those jadeites with windows open will be more beautiful in color and will make people want to buy them, but you should pay attention to it, because the color will be more beautiful with flashlight.
At this time, you should keep a clear head and never buy blindly. It is best to observe the quality of water, impurities and the number of cracks in the flashlight. If you want to see the color, it is recommended to observe it directly in natural light.
So what can a strong flashlight see?
First, look at the cracks. There will be a light blocking effect where there are cracks, but you can't use too bright light. Too bright light will penetrate the crack to transmit light, so that the light blocking effect can not be seen.
Secondly, look at the structure.
1, the correct usage, should be polished at an angle of 60-70 degrees, which makes it easier to see the internal structure of the stone.
2. Judging whether a substance is natural or synthetic according to its structure.
3. Determine the depth of some cracks and cotton with light transmittance.
How to light a strong flashlight is correct?
First, look directly at the texture and richness.
The light source of flashlight is close to the surface of jadeite, mainly depending on the texture of jadeite. The bright flashlight shines directly on the surface of jadeite, and the interior is translucent with relatively concentrated halo.
However, the halo directly acting on the mixed products of quartzite, marble and glass is relatively astigmatism. When the direct shooter translates slowly, it can be used to identify whether the texture structure of jadeite is uniform.
When the flashlight is translated, the light transmittance of jadeite is uniform, indicating that the structure is uniform and the light transmittance is uneven, indicating that the structure uniformity of jadeite is not good.
2. Flashlight oblique glare is an important means to identify the fineness and density of jadeite particles.
The glare angle of flashlight is different, the distance between strong light source and jadeite is different, and the illumination mode is different, so the identification results are different.
To identify the particle thickness of jadeite, you only need to hit it with a strong flashlight at a 45-degree angle and aim it at the parallel surface of jadeite at a 45-degree oblique angle (try to illuminate the skinless surface).
Irradiate at a distance of about 3 ~ 10cm from the jade surface, or move slowly in parallel or far and near. It is advisable to irradiate from a single point and multiple points to see the flocculent structure clearly, so as to identify the fineness and particle thickness of jade.