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轟石 (todorokiseki) Japanese meaning: todorokite | Kotomora

轟とどろき石せき

Meanings

1

todorokite

A manganese oxide mineral. Technical term used in mineralogy and geology.

轟とどろ石きせきはマンガン鉱こう床しょうで見みられる鉱こう物ぶつです。
Todorokite is a mineral found in manganese deposits.

Kanji

轟roar, thunder, boom resound
石stone

Etymology

Named after the Todoroki mine in Hokkaido, Japan, where it was first discovered. The kanji 轟 (とどろき) means 'roaring' or 'thunderous', but the name is a place name.