Nanyu ore body occurs in the schist remains of Proterozoic Yunkai Group and is surrounded by a large area of biotite adamellite.
Southern jade deposits are formed by deep metamorphism of magnesium-rich rocks. Serpentine jade occurs in the stratum composed of mica schist and banded mixed gneiss, and there is often a talc layer with a thickness of 0.2 ~ 5.5 meters under the jade ore body. It also contains a small amount of phlogopite, talc, calcite, tremolite, chlorite and epidote. This kind of beautiful stone belongs to diopside serpentine with beautiful pattern and Mohs hardness of 4~5. Stone green is like emerald, crystal clear as ice, and Yu Rou is elegant, with yellow-green, turquoise, black and other colors.
All kinds of xiuyan jade. Both xiuyan jade and Liaoning belong to serpentine jade, but the color is often different from that of xiuyan jade, and the tone is dark green to brownish green. At the same time, the geological conditions are also different from Xiuyu.
trait
Xinyi Nanyu is listed as one of the four famous stones in Guangdong (jade, marble, Shi Ying and inkstone). Xinyi Nanyu belongs to serpentine jade, green as jade, crystal clear as ice, soft and elegant, with yellow-green, turquoise, black and other colors. Mainly light green, yellow, white, brown and other colors, delicate texture, greasy or waxy luster, translucent. Because of its bright color, low hardness and good machinability, it is unique, warm and beautiful in color, delicate in texture and moderate in hardness, and can be processed into extremely thin utensils, suitable for making jade carvings and jewelry. Making large-scale jade carvings and small and medium-sized display jade are often listed as the first choice jade species. It is also widely used to make various small ornaments and handicrafts such as figures and animals. Xinyi jade carving crafts include flowers, figures, animal mouths, birds, pagodas, multi-layered jade balls, jewelry, bonsai, jade bowls, tea sets, wine sets, king cups, tableware, miscellaneous items, stationery, precious stones, cloisonne and so on 17. Among them, jade pagoda, jade bonsai, jade bowl and jade cloisonne are well-known at home and abroad.