In addition, there are abundant pebble resources in other areas, including Shandong and Liaoning in the north and Guizhou, Chongqing and Guangxi in the south. Pebble resources have their own characteristics and are rich in species.
Among them, due to historical reasons, the pebble resources in Guizhou and Guangxi are well preserved and rich in species. There are many large pebbles in southwest China, which are large in size and strange in shape, and are especially suitable for being used as geomantic stones or cultural stones in landmark buildings.
Extended data
Broadly speaking, pebbles include natural pebbles and machine-made pebbles. Natural pebbles exist in rivers, hills and other nature. Machine-made cobblestones are made by artificial stone collection, crushing and grinding.
Therefore, pebbles include both mechanism and nature. The geometric quantity of pebbles generally refers to a stone the size of a goose egg. Often refers to the particle size of 5- 12 cm. In actual construction, the larger ones are often classified as pebbles.
River pebbles refer to stones like eggs, regardless of size. As small as grain, as big as watermelon or bigger. River pebbles are completely formed naturally, and there is no man-made mechanism problem. Because of the change of the earth's crust, river pebbles are not only found in rivers, but also in hilly areas.
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