Yellow Wax Stone

This stone is called wax stone and originally was siliceous rock, such as quartz sandstone, that became quartzite due regional metamorphism and was later buried in sand and mud and eroded by acidic material over a long period of time. The resultant material is a waxy colourful stone, usually yellow, and its gets its name from these properties. It is tough and stable and has a Mohs hardness of 6–7 and serrated fractures. It can be categorised into 3 types based on its colour, such as yellow, red and multi-coloured, and into six types based on its texture, such as frozen wax, glue wax, crystal wax, ice wax, fine wax and coarse wax. High-grade wax stone is characterised by its hard, tough, fine, greasy, warm and moist qualities. It is produced in many regions of China, and the famous areas include Liuzhou Sanjiang and Hezhou Babu in Guangxi Province, Chaozhou and Shantou in Guangdong Province, Mount Huangshan in Anhui Province, Wuyi in Zhejiang Province and Anhua in Hunan Province (Fig. 7)....