Do you know the two forms of jadeite’s “jade nature”?

We all know that in the process of purchasing jadeite, one of the ways to judge whether the jadeite is natural A-grade is to observe whether it has the "jade quality".

▲ Natural Grade A Jadeite

The so-called "jade nature" of jadeite specifically refers to a special and intuitive characteristic of the structural grain size and mutual combination relationship of its main component jadeite minerals.

▲ Natural Grade A Jadeite

Usually when we talk about "jade quality", we will think of "fly wings", which is a common manifestation of "jade quality" and refers to the reflection of jadeite minerals seen on the surface of jade.

At the same time, because the bright white reflective characteristics of this phenomenon look like fly wings, people commonly call them "fly wings".

▲ The picture comes from the Internet

The "fly wing" effect is usually quite obvious. This is because the jadeite jadeite minerals are of different sizes and orientations, and different parts will appear different flashes when rotated under light.

Of course, not all jades have "fly wings". Due to the influence of polishing, some well-polished surfaces, especially those with curved surfaces, may not show these "fly wings".

▲ The picture comes from the Internet

I believe everyone is familiar with “fly wings”, but since it is said that there are two forms of jade “jade nature”, then what is the other one?

That is the "orange peel effect"! The so-called orange peel effect refers to the feature of jadeite with bumps and depressions of different sizes and directions, similar to orange peel, when observed by reflection on the polished surface.

▲ The picture comes from the Internet

Different from "fly wings", the "orange peel effect" is caused by the different orientations of jadeite minerals in the aggregate form in jade, which results in the relatively uneven surfaces of soft and hard jadeite corresponding to each other during the polishing process.

Simply put, jadeite with a high hardness orientation tends to appear relatively convex during the polishing process, while jadeite with a low hardness orientation tends to appear relatively concave.

▲ Natural Grade A Jadeite

Obviously, since this situation can also show the size and mutual combination relationship of jadeite mineral aggregates, many people also classify it as one of the manifestations of jadeite's "jade nature".

However, there is also controversy about the "orange peel effect" of jadeite. Some people think that it is similar to the acid etching marks of B-grade jadeite, and even describe it as a characteristic of B-grade jadeite.

▲ The picture comes from the Internet

But in fact, the "orange peel effect" and "acid etching" are obviously different. The boundary between the protrusions and depressions of the "orange peel effect" is a gradual and smooth transition.

However, the "acid etching marks" that are common in B-grade jadeite are not like that. Instead, they are spider-web-like cracks between the jadeite mineral particles, and the gaps between the mineral particles are very obvious.

▲ The picture comes from the Internet

Of course, the judgment of the "orange peel effect" is indeed not as intuitive as the "fly wings", so most of the time people are accustomed to observing whether there are "fly wings" in jade to judge its authenticity!