The relationship between Huanglongyu and yellow wax

Huanglongyu must be yellow wax stone, while yellow wax stone is not necessarily Huanglongyu.

黄龙玉与黄蜡石的关系

In recent years, Huang Longyu has been arrogant and famous in the jade collection market. High hardness, bright and elegant color, and dense texture are the most important reasons why Huanglongyu stands out. Of course, there is no shortage of hype. Need to pay attention to the majority of jade friends, the purchase of Huanglongyu should pay attention to its difference with yellow wax.

In fact, before Huang Longyu’s name of the prestige appeared, it was always called yellow wax. Specifically, the difference between the two is that Huanglongyu is a jade stone that meets the requirements for gemstone utilization in yellow wax stone. Huanglongyu must be yellow wax stone, while yellow wax stone is not necessarily Huanglongyu.

Conceptually, the concept of yellow wax is larger. It refers to pyrite-containing wax stone made up of quartz minerals and undergoing complicated environmental changes. Huanglongyu is formed by cryptocrystalline chalcedony or agate in yellow wax. From the appearance, Huanglongyu is fine and moist.

In addition to the appearance, it can be distinguished from the texture: the texture of Huanglongyu is more compact than that of yellowstone; while the yellowstone has a distinct stone texture, and the surface can see a clear granular structure, which is not available in Huanglongyu. .

Anti-Virus Kn95 Face Masks

The KN95 Face Mask can help reduce exposure to biological substances, such as bacteria and viruses. Please note however that wearing a mask cannot eliminate the risk of infection as it depends on the proper fit of the wearer.

Pollen - The KN95 Face Mask can protect you from pollen. Our filter has an efficiency of above 95% at 0.3 pm particle size, whereas normal pollen particles are about 10 - 1000 pm in size.
Animal Allergens - The KN95 Face Mask can protect you from animal allergens. Efficiency of above 95% at 0,3 pm particle size, animal allergen particles are about 5 - 10 pm in size.

KN95 fit instructions:


1.Wash hands thoroughly with soap and water before putting on a mask.
2.Hold the ear loop mask and nosepiece facing up and position the mask under your chin.
3.Stretch the ear loops over each ear.
4.Position the mask low on your nose and using both hands, mold the nosepiece to the shape of your nose by pushing downward and outward while moving your fingertips down both sides of the nosepiece.
5.Perform a fit check by placing both hands completely over the mask. Be careful not to disturb the position of the mask, and exhale sharply. If air leaks, adjust the nosepiece as described in step 4.

Anti-Virus Kn95 Face Masks,Anti-Dust Kn95 Mask,Kn95 Earloop Mask,Adult Face Mask For Protection

Suzhou Ruihan Automation Technology Co. LTD , https://www.ruihansz.com