gold mine

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

China was once seen as a gold mine for certain films — namely, big studio movies — that could get approval from its government for release.

From Los Angeles Times

Mining operations already occur nearby, such as at the Ladolam gold mine on Lihir, where waste material is discharged into the ocean.

From Science Daily

Birds are the "canary in the gold mine," Sayers said, as they are sensitive to mercury pollution and easily accessible, allowing scientists to take the temperature of overall ecosystem health.

From Reuters

The fandom is in the millions - a barely tapped gold mine for teams and a league which have mostly maxed out domestically.

From Washington Times

Outside of South Africa, African rugby struggles to be competitive, and is a gold mine of talent without the means to unearth it.

From Washington Times