greensand

• Существительное, обозначающее оливково-зелёный песчаник, содержащий минерал глауконит.

A noun referring to an olive-green sandstone that contains the mineral glauconite.

uncountable

1. Olive-green sandstoneC1formalscientific

   A sedimentary rock that has an olive-green color due to the presence of the mineral glauconite.

   Зеленый песчаник

   • The cliffs along the coast are composed of greensand.
   • Geologists study greensand formations to understand ancient marine environments.
   • Greensand is often used as a soil conditioner because of its potassium content.