Huanglongyu, also known as Longhuangshi, was only used as an ornamental stone for people to collect and trade before it was developed as jade. It was called "Yunnan Yellow Wax Stone". Around the year 2000, Guangxi stone merchants discovered "Yunnan yellow wax stone" in the Supa River in the area between Yunnan Longling and Mangshi. It is a kind of jade jade that has been discovered in recent years and is of high quality. It is favored by consumers and has become the new richness of jade collection.
Huanglongyu is produced from the Longjiang River in the Xiaoheishan Nature Reserve, Longling County, Baoshan City, Yunnan Province. It was discovered when the hydropower station was built in previous years. The color of Huanglongyu is mainly yellow, with yellow, red, green, white and black. There are "yellow gold, red as blood, green as green, white as ice, black as ink". Specifically: yellow has golden, honey yellow, egg yolk, chicken yellow, orange, yellow and other shades of yellow; red has chicken red, cinnabar red, pig liver red, rose red and other light red; white Snow white, ice white, etc.
The uniqueness of Huanglongyu is attractive: it has the warmth of Hetian jade, the color of Tianhuang, the hardness of jadeite (7 degrees Mohs), and the flexibility of Shoushan Stone. The appearance of Huanglongyu is not only the fibrous structure visible in jade, but also the radish pattern similar to Tianhuang; its transparency has both satisfactory “water head†of jade (the penetration is up to 3-6cm), and there is more than Hetian jade. Better "oil head"; its glass luster is more fascinating, plus the main color of Huanglong jade is yellow and red, yellow means "rich", red means "good luck", so the finished jewelry is highly sought after by consumers. favorite.
Four methods to identify Huanglong jade
When assessing Huanglong jade grade, we can combine the standards of jade and Tian Huangshi to evaluate. Because Huanglongyu has both the hardness of jadeite and the color of Tianhuang and the similar nature of Wenruntongling.
Species: Texture This standard is a noun that uses jade to judge. The "species" is to judge the texture of jade. Huanglongyu is a collection of cryptocrystalline minerals. The finer the texture, the better. The performance is good, the texture of the seeds is delicate and soft, and it has a silky texture. Although some grains in the jade are not visible to the naked eye, they can be clearly felt during the polishing process or the washing degree of the seed material. The "species" are general, and if the grain is visible to the naked eye, Then rated as poor. The quality of the species directly determines the value of Huanglongyu, so this is an important criterion for judging the quality of Huanglongyu.
Water: Also known as the water head. In fact, it refers to the transparency of jade. The good water of Huanglongyu is also called the long head or the head of the water. It is not called dry water. Its value is determined by the quality of the water.
Color: The color here refers not only to the color of Huanglongyu, but also to the saturation of color. Huanglongyu is mainly yellow in color and has a variety of color systems. Its color should be rich (rich), positive (sharp), positive (pure), and (soft).
Net: Generally, gemstone jade has a standard of clarity. Clarity refers to the amount of impurities and cotton contained in jade. Natural jade, the texture is extremely pure, and most of them contain impurities.
The color identification of Huanglongyu
The first is "color"; her color points: light yellow - golden yellow - orange red - orange red - pigeon blood red, etc., the color of these colors are the most active, most prosperous, most noble and vitality and infection in warm colors. The auspicious color of force, this is the first element of "Huanglongyu" which is favored and valuable.
The second is “transparentâ€; Huanglongyu is uniform and translucent. When viewed from the light, the edge or thinner part of the jade has an orange-yellow light transmission. When irradiated with a flashlight, the halo is wider and the edge is irradiated. It can often be translucent to 3-6 cm, and the processed quality is pure and clear.
The third is "run": because the texture is fine, pure and clear, no impurities. Therefore, the effect after polishing is excellent, delicate and soft, and clear and bright.
The fourth is "hard": Huang Longyu's hardness is 6. 5-7 degrees, but in the process of processing is very "eat" tools, more than the tools of carving jade.
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