Definition

A type of rock that has been oxidized and is often reddish or rusty in color, typically found at the surface of a mineral vein.

Example

The geologist examined the gossan to determine the presence of valuable minerals.

Conversation

Have you ever seen a gossan in the wild?

No, I haven't. What does it look like?

It's usually this rusty-looking rock that forms where minerals oxidize.

That sounds really interesting! I’d love to check one out.

Synonyms & Antonyms

Root Explanation

Gossan originates from the Cornish word 'gossan', meaning a rusty or oxidized surface of ore. It refers specifically to the weathered, oxidized layer of mineral deposits, often indicating the presence of valuable metals beneath.

Memory Tip

Think of the Cornish word for a rusty surface, which helps you remember that 'gossan' refers to the oxidized layer of ore that can indicate valuable minerals.

Visually Confused Words