輝き緑りょく岩がん

noun

diabase; dolerite

A dark-colored igneous rock, also known as dolerite. Used in geology.

• 輝き緑りょく岩がんは玄げん武ぶ岩がんに似にた火か成せい岩がんである。

  Diabase is an igneous rock similar to basalt.