Dictionary of Geotourism

2020 Edition
| Editors: Anze Chen, Young Ng, Erkuang Zhang, Mingzhong Tian

Hotan Jade Occurrence, Xin-Jiang

Reference work entry
DOI: https://doi.org/10.1007/978-981-13-2538-0_1093

The Hotan jade occurrence is a contact metasomatic deposit and is the most famous source of jade in China. The ore bed of the deposit is located along a stream in the Alamas Valley, a tributary of the Keriya River in the Kunlun Mountains, approximately 80 km south of Hotan County, Xinjiang Uygur Autonomous Region. The primary ore bed is located on the contact zone between Late Hercynian granodiorite and altered dolomitic marble associated with metamorphic clastic-carbonate rock of the Proterozoic Pixian System, which has obvious metasomatic alteration and zonation. The Hotan jade ores are located in the marble zone of the deposit. The mineral composition of Hotan jade is tremolite. The Hotan jade can be classified according to its colour, such as opaque white, greenish white, and green. High-quality Hotan white jade is world-famous. Currently, Hotan jade mining is performed by collecting water-polished jade pebbles from a secondary ore sand. Hotan jade was mined from the streams in...

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