Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of gossan is as below...

Gossan :: Gossan (n.) Decomposed rock, usually reddish or ferruginous (owing to oxidized pyrites), forming the upper part of a metallic vein..

Gossaniferous :: Gossaniferous (a.) Containing or producing gossan.

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