An exposed, oxidized portion of a mineral vein, especially a rust-colored outcrop of iron ore.
(mining) Rusty iron deposits often occurring where the upper part of a vein has been weathered and oxidized.
Other Word Forms
Origin of gossan
- Cornish gossen from gōs blood from Old Cornish guit
From American Heritage Dictionary of the English Language, 5th Edition
- From Cornish.