The difference between Huanglongyu

The color characteristics of Huanglongyu make it easy to distinguish it from traditional jade, such as nephrite, jade, malachite, Shoushan stone, marble, etc., which will not be repeated here. Currently, the main difference is the difference between yellow wax.

Yellow wax stone, named after the waxy texture of the stone surface layer (one said that this stone origin is the true wax country, it is called the stone). It belongs to the Suihua Andesite or sandstone. The main component is quartz. The surface of the oily waxy substance is a low-temperature melt with strong toughness. Due to the different minerals in the process of geological formation, there are yellow wax, white wax, red wax, green wax, black wax and colored wax. Moreover, due to the difference in the purity of the silica, the size of the quartz body particles, and the melting of the surface layer, the following may be classified into a frozen wax, a crystalline wax, a wax, a wax, a fine wax, a crude wax, etc., and the frozen wax may transmit light to Stone heart. Yellow wax is more common in yellow, which is pure yellow, as well as sallow, earth yellow, chicken yellow, egg yolk, ivory yellow, orange and other colors. It is mainly produced in the Guangdong-Guangdong region, and is best produced in the coastal areas of Guangdong's Dongjiang River (Heyuan) and Chaozhou. The stone color is pure. The place of origin is Guangdong, Jiexi, Fogang, Shaoguan, Qingyuan, Zijin, Taishan, Kaiping, Dianbai, Guangxi Liuzhou, Hezhou, Zhongshan, Jinxiu Jiangxi Xinjiang River Basin and other places. The texture is delicate and delicate. Before Huang Longyu officially changed its name, many people called it “Yellow Wax Stone”. In fact, yellow wax stone is a very extended concept, which is composed of quartz family minerals or rocks, in the hot or humid environment of the surface or near the surface, after long-term oxidation of groundwater containing iron ions or by quartz family mineral rocks. The original black-gray low-cost iron-ion mineral, crypto-granular pyrite, can be called wax stone after long-term oxidation to high-valent iron ions. The original rock of Huanglongyu is mainly composed of fine cryptocrystalline quartz, chalcedony. The quartz particles are very small and cannot be distinguished by the naked eye. It needs to be seen by a high power microscope. The diameter of each quartz is only 0.001 mm. That is to say, Huanglongyu is formed by the cryptocrystalline chalcedony and part of the agate in the yellow wax stone. Popularly speaking, it is popular to say that Huanglongyu is a yellow wax stone that reaches the jade level, and its texture is delicate, gentle and dynamic. In the name, "Huang" is the main color of Huanglongyu, "Dragon" is not only the "reduction" of the main producing area of ​​Longling, but also the profound connotation of the Chinese "Dragon" culture. "Jade" is the beautiful stone for jade, so the classic After detailed investigation, sampling, identification, and research by the Yunnan Ornamental Stone Association, it was officially named “Huanglongyu”.

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