noun
gahnite
A zinc aluminate mineral of the spinel group. Technical term used in mineralogy.
この標本は亜鉛尖晶石の結晶を含んでいる。
This specimen contains crystals of gahnite.
Compound of 亜鉛 (あえん, 'zinc') + 尖晶石 (せんしょうせき, 'spinel'), reflecting its composition as a zinc-rich spinel mineral.