gossan

Meaning

Rust-coloured (weatherized and oxidized) rock or mineral deposits, forming the upper part or outcrop of a metallic vein.

Synonyms

iron hat

iron gossan

iron cap

Pronounced as (IPA)
/ˈɡɒsən/
Etymology

Borrowed in the 1770s from Cornish gossen, from gōs (“blood”), from Old Cornish guit (compare Proto-Celtic *wolis).

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