coarse
Adj 粗糙的, 下等的, 粗俗的
Invalid [计] 粗略的

On the surface of some jade ornament or crystal with coarse grain structure, the microscopic fissure can be formed along the cleavage.
在有些结晶颗粒较粗的翡翠饰品表面，硬玉晶体上可见沿解理形成的微细裂纹。;