nambulite
A rare mineral name used in geology. Named after the Nambu region of Japan.
南部石は、岩手県の南部地域で発見された鉱物です。
Nambulite is a mineral discovered in the Nambu region of Iwate Prefecture.
From 南部 (Nambu, a region in Japan) + 石 (stone, mineral). The mineral was named after its discovery location.