In a broad sense, the stones carried by the two sides of the Yellow River into the Yellow River are called the Yellow river stones, or yellow river stones for short. Due to the different geological conditions along the Yellow River, the formation of the Yellow river rocks vary in various forms. It is commonly believed that: Heyuan stone flows through Qinghai, Gansu and Ningxia, Lanzhou stone, Qingshui stone flows through Inner Mongolia, Heluo stone (also called Luoyang Yellow River Stone) flows through Henan, and there is basically no strange stone in the East due to soil geography. Among the strange stones produced in the above sections, Lanzhou section and Luoyang section are excellent. The Yellow River in Lanzhou section receives the tributaries of Tao River, Daxia River, Huangshui River and Datong River; the Yellow River in Luoyang section receives the tributaries of Luo river, Yi River and Ru River. The genesis of Huanghe stone is complex, including igneous rock, sedimentary rock and some metamorphic rock; there are quartz sandstone, quartz siltstone, granite and glutenite, among which there are light metamorphic quartzite and sedimentary rock, and most of them are iron stained quartzite. After complicated structural changes and washing by flowing water, these stones eventually become exquisite and unique stones with oriental cultural connotation. They have beautiful patterns, colorful colors, or hard and delicate stone, simple and elegant, or exquisite and delicate, Ana colorful. The colors are red, orange, yellow, green, green, blue and purple. They are naturally generated, interesting, subtle, elegant, profound, unrestrained in composition, rough and vigorous, incisively and vividly. The big one can stand in the court, the small one can be placed in several cases. It's impossible to praise the Yellow River stone with any gorgeous words.
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