Nanyang jade features
What are the characteristics of Nanyang Jade? When it comes to Nanyang jade, everyone will think of Dushan jade! Next, Xiaobian will tell you about its characteristics:
1. Color: Dushan jade is very colorful, and there are not many jade materials in a single color. It is composed of two or more kinds of tones. The color generation is often related to the pigment ions such as Cr3+, Fe2+, Mn2+, V2 and Ni2+. And appear to be attached to various altered minerals with color, of which green is related to cation stone, chrome mica and chlorite, light red is related to zoisite, and yellow is related to attapulgite. The color of Dushan is complex and diverse. The distribution on the jade is twofold: one is that the colors are intertwined and interlaced, and the other is characterized by a roughly parallel strip, and the hue and concentration show a gradual relationship. Generally, according to different colors, Dushan jade can be divided into five categories: green, white, purple, yellow and variegated. Dushan jade is mainly green, and green is two types: one is transparent, its color It is dark green, blue-green, black-green, and the blue taste is heavier; the second is opaque, its green is mostly pale green, yellow-green, yellowish; the two green are not positive. Dushan jade's colorful clutter has brought difficulties to its beneficiation classification. Compared with jade, most of the colors are dull and the quality is low, but on the other hand, because Dushan jade is colorful, white and green, yellow and black. , purple and other colors, very suitable for the performance of jade carving, if you use the achromatic color, you can become a beautiful color product, where bright colors can also be jewelry.
2. Texture: Because Dushan jade is composed of various mineral components, it has similar composition to jade and nephrite. Its texture is similar to nephrite and jadeite. It has tough, dense and delicate properties, such as white like white clouds and greenish green. Jade; but overall, its texture is not as clean as the texture of nephrite and jade, showing the complexity of Dushan jade texture.
3. Transparency: Due to the difference in the internal structure and composition of Dushan jade, its transparency can be seen from translucent, micro-transparent to opaque. For example, it is white with permeable white jade and dry white jade. The transparent white jade has good transparency. It is mainly composed of plagioclase with a particle size of less than 0.01 mm. The particle size is uniform, the structure is dense and the texture is fine. The dry white jade contains a large amount of zoisite and has a large grain size. The distribution is uneven and the texture is rough.
4. There are two causes of cracks in Dushan jade: one is the primary crack, which splits the original stone into small pieces due to various geological functions; the other is caused by the force during the mining process. The secondary crack is non-directional; the crack affects the natural block size and processing of jade.
5, impurities: Dushan jade often distributed some scattered or dark minerals, sporadic remnants, commonly known as "grey stars", if there are "grey stars", the impact on the beauty and cleanliness of jade crafts, there are still levels, colors in the original stone , texture, density, etc.! Pure green or emerald green, blue green, light blue, green, blue, permeable white, green and white dense and delicate, no white gluten, no impurities, no wadding will be more than 20 kg for the top grade.
Xiaobian introduced the characteristics of Nanyangyu from several aspects such as color, texture, transparency and impurities. Through the above introduction, everyone has deepened the understanding of Nanyangyu, and hope that this knowledge will help you. If you want to know more about jewelry, please pay attention to China Jewelry Merchants Network!
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