gold mine

noun

1. a mine yielding gold.
2. a source of great wealth or profit, or any desirable thing.
3. a copious source or reserve of something required:

   a gold mine of information about antiques.

gold mine

noun

1. a place where gold ore is mined
2. a source of great wealth, profit, etc

Derived Forms

• ˈgold-ˌminer, noun
• ˈgold-ˌmining, noun

Word History and Origins

Origin of gold mine¹

late Middle English word dating back to 1425–75

Idioms and Phrases

A rich, plentiful source of wealth or some other desirable thing, as in That business proved to be a gold mine , or She's a gold mine of information about the industry . [First half of 1800s]

Example Sentences

"But evolution acts on all parts of the body, great and small. Structures and regions that have been ignored are often gold mines for new insights and untold tales."

From Science Daily

Resolute, which owns a gold mine in Mali, said on Sunday it would pay $80m immediately from existing cash reserves, and the rest in the coming months.

From BBC

The men own a Scottish-made brick recovered from an old gold mine in Washington state, USA.

From BBC

At least one person has died and 12 remain trapped in a disused Colorado gold mine after an equipment failure, officials say.

From BBC

Unrest had been brewing near the Porgera gold mine in the country's central highlands ever since members of the Sakar clan settled on land owned by their rivals, the Piande, sometime in August.

From BBC