| Mount Du | |
|---|---|
  Mount Du Location in China | |
| Highest point | |
| Elevation | 367.8 m (1,207 ft) |
| Coordinates | 33°4′13″N112°35′11″E / 33.07028°N 112.58639°E /33.07028; 112.58639 |
| Geography | |
| Location | Nanyang, Henan,China |
Mount Du (Chinese:独山;pinyin:Dú Shān), which means Lonely Hill in Chinese, is a small mountain nearNanyang City,Henan province,China.
The hill is rich in a jade substitute or simulant stone,saussurite. "Dushan jade" is a misnomer. It is not the true jade found inXinjiang, China: nephrite, a CaMg silicate (Si), nor the true jade found inBurma: jadeite, a NaAl silicate (Si). It is a fine grained mixture of feldspar and epidote. It is currently marketed under the names, Dushan jade, Swiss jade (1st identified by Swiss mineralogist), and Nanyang jade (Nanyang, Henan Province).
On the third day of the third month of theChinese calendar, people climb the mountain.[citation needed]
| International | |
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| National | |
