板岩

zhè ge qū yù kāi cǎi bǎn yán yǒu shù bǎi nián le

这个区域开采板岩有数百年了。

The area has been mined for slate for centuries.

zhǐ yǒu néng gōng qiǎo jiàng cái néng bǎ bǎn yán pī chéng shí piàn

只有能工巧匠才能把板岩劈成石片。

Only a skilled workman can split slate into layers.