真ま砂さ土つち

noun

decomposed granite soil

A type of weathered granite soil commonly used in Japanese gardening, road construction, and as a base material. Often seen in contexts like 真砂土舗装 (decomposed granite paving).

• 庭にわの通つう路ろに真ま砂さ土つちを敷しいた。

  We spread decomposed granite on the garden path.

• 真ま砂さ土つちは水みずはけが良よいので、駐ちゅう車しゃ場じょうの舗ほ装そうによく使つかわれる。

  Decomposed granite drains well, so it is often used for parking lot surfacing.