also: はらだいし
noun
haradaite
A rare strontium vanadium silicate mineral, named after the Japanese mineralogist Harada. Used in geological contexts.
原田石はストロンチウムとバナジウムを含む珍しい鉱物です。
Haradaite is a rare mineral containing strontium and vanadium.
Named after the Japanese mineralogist Harada (原田). The exact derivation of the reading is uncertain; はらだせき is the standard reading.