The green mud in Benshan, which is sandy mudstone, is located between the layers of purple mud and is produced in the form of mud in mud. It is difficult to mine and the output is scarce.
Mudiness: This green is a dense block structure, with less ore content, large particle content, smooth surface after firing, small shrinkage and deformation rate, and relatively loose tire quality.
Difficulty: Generally between 1200 and 1230.
Features: The original green mine is grayish white or off-white to green, grayish yellow after firing, and blueish gray when the temperature is high