自し然ぜん石せき

noun

fieldstone; natural stone

Refers to stone in its natural, unprocessed state, as opposed to artificial stone (人造石). Often used in landscaping, construction, or decorative contexts.

See also: 人造石

• 庭にわに自し然ぜん石せきを敷しいて歩ほ道どうを作つくった。

  I laid natural stones in the garden to make a path.

• この壁かべは自し然ぜん石せきを積つみ上あげて造つくられている。

  This wall is built by stacking natural stones.