珪けい孔く雀じゃく石せき

noun

chrysocolla

A blue-green copper silicate mineral, often used as a gemstone or ornamental stone.

• 珪けい孔く雀じゃく石せきは美うつくしい青あお緑みどり色いろの鉱こう物ぶつです。

  Chrysocolla is a beautiful blue-green mineral.