The 4 well-known jade in China are
1. HETIAN和田玉
2. LANTIAN蓝田玉
3. SERPENTINE 岫玉
4. DUSHAN 独山玉
Interesting facts
During the Qin dynasty, the imperial seal was made using Lantian jade.
黄龙玉 yellow dragon jade was later discovered. In Chinese it is called a jade but the component is more towards chalcedony.
However, there is another similar yellow called 黄金玉，a newly discovered jade found in 2004. It is another form of serpentine which is yellow in colour, Hence know as golden jade as pictured.
Faith’s Treasures 