noun
serpentinite
A metamorphic rock composed mainly of serpentine minerals; used in geology and sometimes as a decorative stone.
蛇紋岩は、マントル物質が水和してできた岩石です。
Serpentinite is a rock formed by the hydration of mantle material.
この地域の地質図には蛇紋岩の分
The geological map of this area shows the distribution of serpentinite.