コバルト華か

noun

erythrite; cobalt bloom

A secondary cobalt mineral, typically pink to crimson, found in oxidized zones of cobalt deposits. Technical term used in mineralogy.

• コバルト華かは鮮あざやかな紅こう色しょくの鉱こう物ぶつだ。

  Erythrite is a mineral with a vivid crimson color.