The difference between Huanglong Jade and Jadeite

Huanglongyu and yellow jadeite are very similar, and many people often confuse them, and even some careless testing departments have made the mistake of identifying Huanglongyu as yellow jadeite when it first entered the market. since the two can not be well distinguished from color, texture and hardness, what is the difference between Huanglongyu and jadeite? Let's take a look at it together.

The weight of the two is different.

The density of Huanglongyu and jadeite is different, which can also be used as a basis to judge the two. The density of Huanglong jade is smaller than that of jadeite, which is between 2.60 and 3.40, and the density of jadeite is 3.33. Therefore, Huanglong jade and jadeite of the same size are lighter than Huanglong jade.

There is a difference in refractive index

Refractive index is a physical constant, which is very important for organic compounds. It is related to the structure and light wavelength of jade. Different kinds of jade have different refractive index. The refractive index of Huanglong jade and jadeite is 1.54 and 1.66 respectively. People usually use Abbe refractometer to measure their refractive index.

Distribution characteristics of iron ore

The distribution characteristics of limonite were observed under a high-power magnifying glass. The limonite of Huanglongyu is in the shape of yellow-brown colloid, which is uniformly dispersed in the chalcedony, and the limonite of yellow jadeite is also in the shape of yellow-brown colloid, which is distributed in the crystal gap filled with aluminopyroxene.

Mineral particle size

Generally speaking, the main component of high-quality Huanglong jade is chalcedony, so the mineral particle size of Huanglong jade is usually no more than 0.01 mm, and its particles can not be seen with the naked eye. But the main component of yellow jadeite is aluminopyroxene, the mineral particles are larger than Huanglong jade, usually more than 0.01mm, we can directly see its crystal particles, but also observe its emerald (also known as jadeite, is the light shown by the cleavage surface of the particles). Popularly speaking, Huanglong jade with good texture is very delicate, so the optical characteristics on its polished surface do not have emerald, there are no microwave lines, and yellow jadeite has.

The sound quality of the two is different.

If you tap Huanglongyu and jadeite with metal rods, you can find that they make different sounds. The sound of jadeite is melodious and crisp, while that of Huanglongyu is obviously dull and heavy, which is not as good as that of jadeite. In addition, jadeite has a high toughness, even if it falls, it is not easy to break, while Huanglongyu is different, because Huanglongyu is very brittle and lacks toughness.