珪けい質しつ

noun which may take the genitive case particle 'no', noun

silicic; siliceous

Technical term used in geology, chemistry, and materials science to describe substances containing or related to silica. Often used attributively with の.

• 珪けい質しつの堆たい積せき物ぶつがこの地ち域いきで見みつかった。

  Siliceous sediments were found in this region.

• この岩がん石せきは珪けい質しつである。

  This rock is silicic.