Why did Ziyu say it "died before Guangming"?

Jade circles all say "green is the most important", but the last sentence is "purple is the most important", so it is conceivable that the value of purple jade is not low. But recently, I saw a purple jade with a particularly beautiful color in Bian Xiao. As a result, it actually changed color in natural light. What happened?

Hey, it's the purple jade round card on it. Look at this color. Does it look good? ! It is rare to see this kind of purple material with uniform color on the market!

However, when Cuiyou put it in natural light, Bian Xiao's heart broke down! This? Is it really that beautiful purple jade just now? Stop teasing me!

No wonder Ziyu also has a name called "Seeing Death". As soon as this example comes out, everyone understands! Let's see why there is such a contrast!

There is another name for violet jadeite in the industry, which means that some violet jadeite is purple indoors and turns white in natural light. In fact, because purple jadeite is generally impermeable to water, the cotton wool inside obviously feels white in the sun.

Because of the influence of the transparency of jadeite itself, in fact, many colors of jadeite are very different in different light environments.

Among them, purple is the easiest color to look up or down because of ambient light, but not all violets will die from exposure. It is precisely the pink purple in purple that is easy to die under light, while the eggplant purple or blue purple in blue is in natural light, and the color is more vivid and beautiful.

In order to explain this truth more clearly, let's first understand the three primary colors of light, red, green and blue, and their different performances after adding colors.

Green plus red is yellow; Red plus blue is purple; Red, green and blue add up to pure white; Purple is reddish, that is, reddish purple, blue, that is, blue purple.

And if this light source is a low color temperature light source with red and yellow light, it is the pink-purple gain effect, which makes the pale pink jade more red and purple.

On the other hand, when our common light enters violet and refracts from it, you will see that it is because violet easily loses its color. Therefore, when shooting violets, it is often illuminated from the back, which is the effect of shooting from the other side of the light.

So the quality of violets should not look at the color, but at the bottom. Including how much color occupies the bottom and how deep the color goes into the bottom; Floating on the surface or from the inside out.

If the color is only a thin layer floating on the surface, then the possibility of this violet dying in light will rise linearly! Speaking of which, Cui friends should now know why Ziyu is called "death"!