Sometimes the composition mineral besides the antigorite and the chrysotile, contains the few dolomite, the magnesite, the tremolite and the olivine and so on.
The dark stone is flecked with white, snake-like streaks, which gives it its name, serpentine and when you look more closely, you can see the face has been pierced, and has been ritually scarred.
型的
和田玉、独山玉、
名称的由来。如果你凑近看，还会发现面具上有穿孔的痕迹，应该在仪式上佩戴过。
