gold mine

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

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

Alzheimer’s used to be the gold mine of the drug industry before obesity treatments.

The kids from school don’t see dashikis as exactly fashion-forward—they see them as a gold mine for insults they think are clever.

Her childhood is an endless gold mine to draw from and build upon, and in her work, she tries to reconnect people to childlike joy.