very coarsely crystalline

例句：

1. 1.The minerals in the soil are very coarsely crystalline.
   土壤中的矿物质非常粗糙地结晶。
2. 2. The glass is very coarsely crystalline and can easily break.
   这块玻璃非常粗糙地结晶，很容易碎。
3. 3.The rock is very coarsely crystalline and has a hard texture.
   这块岩石非常粗糙地结晶，质地坚硬。