What are the origins of bluestone stones in China?

Qingshi is probably the most common variety of stone products and can be found in almost every province in China, carrying the memories of many people’s childhoods. China is one of the four major producing areas of bluestone in the world, and of course, in the eyes of many people, all stones may be called bluestone. Bluestone is simple and elegant, rough, natural, elegant, and warm, yet not lacking in luxury and grandeur, giving people a feeling of returning to nature and being close to the mountains. In addition, with good compressive and wear-resistant properties, bluestone is a top-quality stone for wall, floor decoration, and profiled materials.

Qingshi is a zero radioactive stone material that is harmless to the human body. In China’s “Radionuclide Limits for Building Materials” (GB6165-2001), it is clearly stipulated that the radioactivity of sandstone is not included in the scope of radioactive testing. This is based on long-term monitoring and a large number of spot checks conducted during the preparation of standards. Actually, as a type of stone mainly composed of Si O and A1 O, it is itself an environmentally friendly, green, and reliable building material.

Sichuan Qingshi

1. Origin of Qingshi in Neijiang City

Qingshi in Neijiang City is mainly concentrated in Longchang and Zizhong. Longchang Qingshi has a high reputation in the market. Longchang is rich in bluestone resources, known as the “crown of Sichuan sand” and is second to none in China. According to data records, the Longchang bluestone mineralization is composed of the Lower Jurassic Zhenzhuchong Formation and the Middle Jurassic Shaximiao Formation.

2. Dazhou Qingshi

In recent years, the market share of Dazhou bluestone has gradually increased, and many chambers of commerce that operate bluestone in the market also operate Shandong bluestone and Sichuan bluestone. The Sichuan bluestone mentioned here is mostly made of Dazhou’s board. Dazhou bluestones are mainly concentrated in the Daxian and Quxian counties of Dazhou city. Sandstone texture, with a slightly blueish-black color. Sichuan is also the main source of bluestone, with bluestone-producing areas like Ziyang and Zigong.

Shandong Qingshi

Jiaxiang County, Jining City

The actual material of the bluestone produced in Jiaxiang County is limestone, and its real name is “Celestial Blue Stone”, with a dark gray color. However, the material and use of bluestone in the industry are relatively similar, with strong substitutability. Engineering professionals often cannot distinguish between “celestite” and “bluestone” foolishly.

Henan Qingshi

1. Qi County, Hebi City

There are various names for Qixian Qingshi, and there are also local names such as Qixian Black and Hebi Black, which are slightly black in color.

2. Huixian County, Xinxiang City

Huixian bluestone has a green and black color, with a hard texture, and is also one of the important producing areas of bluestone in Henan. Of course, Henan bluestone is also produced in places such as Yanshi in Luoyang and Dengfeng in Kaifeng.

Guizhou Qingshi

The main market for bluestone in Guizhou is in the southwestern provinces and cities, and it is also one of the main sources of bluestone in China.

Guiyang City

Both Huaxi District and Xifeng County have mining and processing enterprises for Guizhou Qingshi.

In addition, there are bluestone mines and factories in Xingyi City, Zhenfeng County, Jinping County, Bijie Prefecture, Jiangkou County in Tongren Prefecture, Dushan County in Qiannan Prefecture, and Xixiu District in Anshun Prefecture in Guizhou.

Jiangxi Qingshi

Jiangxi Qingshi is mainly distributed in Xingzi County and Xiushui County, Jiujiang City, and is made of black-gray slate material.

Chongqing Wanzhou Qingshi

The materials of Chongqing Wanzhou bluestone and Sichuan bluestone are relatively similar, to sandstone materials. Easy to carve and modify boards.

Dahua diabase in Guangxi

Guangxi Dahua diabase, with fine grained peacock green surface stone, is a first-class building material. It can be used as building stone or craft stone and is a raw material for casting stones. Those with uniform texture and no cracks can be used as stone materials, especially those with fine particles.

The texture of bluestone is delicate, with a blue color and emerald green as the main color. It is harmonious and elegant, with unique patterns and a strong natural beauty. It has stable physical and chemical properties. Lightweight, hard stone, insulated, nonconductive, smooth, moist, nonporous, not easily weathered, corrosion-resistant, wear-resistant, acid-resistant, alkali-resistant, nonradioactive, it is a natural cultural stone, and craft ornamental stone. Bluestone is mainly used for plaques, monuments, architectural decoration, craft carving, etc. The surface of the bluestone board is smooth, closer to nature than marble and granite polished sheets, and has good decorative performance. Therefore, it is mainly used for house decoration. High-quality bluestone can be used to make handicrafts such as reliefs, inkstones, paperweights, pen holders, tea cups, ashtrays, etc., with high appreciation and collection value.

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