月げっ長ちょう石せき

noun

moonstone

A gemstone from the feldspar group known for its adularescence. Used in jewelry and as a collector's mineral.

• 月げっ長ちょう石せきは、月げっ光こうのような青あお白じろい輝かがやきが特とく徴ちょうです。

  Moonstone is characterized by a pale bluish shimmer like moonlight.