石せっ灰かい石せき

noun

limestone

A sedimentary rock composed mainly of calcium carbonate, used in construction, cement, and industry.

• この地ち域いきでは石せっ灰かい石せきが豊ほう富ふに採とれる。

  Limestone is abundantly mined in this region.

• 石せっ灰かい石せきを砕くだいてセメントの原げん料りょうにする。

  Limestone is crushed and used as a raw material for cement.