Generally speaking, the large jadeite gravel produced in Myanmar that has been weathered or transported to river valleys and riverbeds is called Laokeng jade. Laokeng jade is characterized by good water head, strong quality and high transparency, and its top grade is as transparent as glass
it is called glass or ice. The same old pit jade, its quality is also relatively high and low, some transparency is higher, some transparency is slightly worse
The Laokeng jade with high transparency may not have a good water head