Beichuan Beige Marble, a famous stone in Beichuan Yi Autonomous County, Mianyang City, Sichuan Province. Beichuan beige marble has bright color and clean surface. Apart from natural cracks and patterns, it has almost no inclusions. It has good physical and chemical properties, and its physical density indicators such as bulk density, water absorption, smoothness, compressive strength and flexural strength are all Significantly better than other similar products.

“Beichuan Beige Marble” is a famous stone in Beichuan Yi Autonomous County, Mianyang City, Sichuan Province. It is a national geographical indication product of China. Named after the China Stone Association and related experts and scholars and many manufacturers have reached a consensus. The characteristics are full variety, bright color, clean surface and excellent texture. In addition to natural cracks and patterns, there is almost no inclusion; it has good physical and chemical properties, and its physical properties such as bulk density, water absorption, smoothness, compressive strength and flexural strength are obviously superior to other similar products. It is the best beige marble found in China. The resource reserves, mining conditions and mining volume are the only varieties that can replace high-quality imported beige stone. At the end of 2010, the China Stone Association awarded Beichuan County the title of “Hometown of Chinese Beige Marble”. Product Characteristics of Beichuan Beige Marble Beibei Marble belongs to the marine sedimentary genesis. The ore-bearing horizon is the Triassic Zhongtong Patio Group bioclastic limestone, which is exposed in the three counties of Jiangyou, Beichuan and Anxian, which are mainly in Beichuan. Within the area of ​​nearly 50km, the recoverable range is about 10km. Beibei area beige marble is comparable to imported high-quality beige marble because of its large reserves, variety, quality, integrity and easy mining. Beichuan Beige Marble Natural and Geological Conditions The Beichuan Beige Marble Mine is located in the front of the Longmen Mountain in the northwestern margin of the Sichuan Basin. It is a shallow-middle-cut low-mountain terrain. Altitude elevations range from 400 meters to 1450 meters. The mining area has a subtropical monsoon climate with four distinct seasons, mild and humid climate, abundant rainfall and 211 days of frost-free throughout the year. The highest temperature is 34.5 ° C, the lowest temperature is -3 ° C, and the annual average temperature is 15.74 ° C. The annual average rainfall is 1300mm/year, and the rainy season is mostly concentrated in June-September. It is suitable for field mine geology and mining work throughout the year. The mining area is located at the northwestern edge of the Yangtze block in the geotectonic position. The junction of the Longmenshan foreland and the thrust belt of the Yangtze River and the northwest foreland basin of the Sichuan continental basin. The stratigraphic division belongs to the northern section of the Longmenshan sub-district in the Yangtze stratigraphic zone. The crustal movement in this area has been reflected in different degrees in the area from the former Sinian system to the third line. Affected by the evening of the Indo-Chinese movement, the Triassic and the previous strata were all wrinkled, forming the wrinkle of the Longmenshan thrust-over thrust belt. The Yanshan Movement in the Sichuan Basin is mainly characterized by frequent volatility ups and downs, and is developed into a mound in the piedmont depression. The overall uplift of the late Yanshan Mountains led to the loss of the Cretaceous and Tertiary strata. The early stage of the Xishan movement, due to the strong horizontal pushing force, caused the wrinkles and fractures of the Zhongsheng belt cover layer, and promoted the Longmenshan push-over-the thrust belt to further develop and shape. In addition to the absence of the Tertiary and Cretaceous, the mining area has been exposed from the Quaternary to the Zhaiwu system, especially in the Guixi, Tongkou, Xiangquan and Perfume areas, and the Devonian-Triassic shallow sea. The carbonate deposits are particularly developed, forming the 500-700 m thick limestone, dolomitic limestone and dolomite strata intersecting the Triassic Zhongtong Tingshan Formation and the Leikoupo Formation. It is rich in scorpions, brachiopods, ammonites, sea lilies and foraminifera fossils and bioclastics. Beichuan Beige Marble Industry Status At present, Beichuan has 10 beige marble mine development enterprises. The mining area is controlled within five square kilometers, and three non-mine processing enterprises have a total investment of nearly 200 million yuan. Among them, the investment for infrastructure construction is about 20 million yuan, accounting for 10% of the total investment. The investment for pre-preparation such as mine transfer and compensation is about 20 million yuan, accounting for 10% of the total investment. The investment in construction is less than 40 million yuan, most of which is also used to purchase land, accounting for 20% of the total investment. This does not include mining and processing enterprises that produce calcium powder and cement raw materials. Among the mine development enterprises, there are three six mining faces that have formed the block production capacity, of which the largest mining face has a mining platform of 11,000 square meters. It is estimated that this year's mining area can reach a capacity of 2000 cubic meters per month. There are 10 basic types of products. The mining area has nearly 40 sets of large-scale stone machinery and equipment, including 31 large-scale excavators, 31 loaders, 6 sawing machines, nearly 10 fixed and mobile lifting equipments, and more than 30 diamond rope bead saws. Two large-plate automatic lines have been built, and the production of thin plates and mosaics has begun to take shape.

Beichuan Beige Marble Quality Technical Requirements (1) Variety. Beige marble. (2) Mining. 1. 2. 3. Saw: Saw the block determined by the hole. 4. Secondary segmentation: the size of the sawing block and the texture of the beige marble ore (not suitable for the processing of the profiled material to be sawn and removed), and according to the specifications of the shaped products that have been formed in the production process, the second segmentation is performed at +20 cm. Forming blocks for production and processing. (3) Processing. 1. 2. 3. Rough grinding: After the first-time grinding of the cut sheet metal, the natural crack of the sheet material seriously affects the use and damage. 4. Fine grinding: After coarse grinding, the surface of the plate is finely ground, and the surface luminosity is required to be above 70 degrees, and the damage is removed. 5. Fine grinding: requires a surface luminosity of 85 degrees or more. 6. Polishing: The polished plate profile is polished by waxing and the surface luminosity is required to be above 90 degrees. (4) Quality characteristics. 1. 2. 3. Safety requirements: Product safety indicators must meet the relevant regulations of the state for similar products.

Apply to：
Producers within the scope of protection of Beichuan Beige Marble Geographical Indication Products can submit an application for the use of “Special Marks for Geographical Indication Products” to the Quality and Technical Supervision Bureau of Beichuan Yi Autonomous County of Sichuan Province, which is subject to the examination by the Sichuan Quality and Technical Supervision Bureau. The General Administration announced the approval. The statutory testing agency for Beichuan Beige Marble is designated by the Sichuan Provincial Bureau of Quality and Technical Supervision.