Archaic or literary word for iron. In modern Japanese, 鉄 (てつ) is the standard term. くろがね appears in classical texts, poetry, or fixed expressions.
See also: 鉄 (てつ)
In old documents, 鉄 is sometimes read as くろがね.
The expression 'iron armor' (くろがねの鎧) appeared in the period drama.
Archaic kanji spelling for 'iron'; normally read てつ in modern Japanese. The reading くろがね is rare and literary.
Alternate archaic spelling, literally 'black metal'. Rarely used.
Kana spelling for the archaic reading, useful for clarity when the kanji 鉄 would be read as てつ.
Compound of 黒 (くろ, 'black') + 金 (かね, 'metal'), referring to the dark color of iron. The reading くろがね is an older native Japanese term, later largely replaced by the Sino-Japanese てつ.