It is also the world's only significant source of blue diamonds.

Oil and gas production is a significant source of revenue for the state.

This is a significant source of disease for vulnerable fish.

This has become a significant source for players of the instrument.

This capital can be a significant source of firm value.

Fish and game are not a significant source of food.

For the most part, they went along with the general political flow and were not a significant source of problems.

This process is no longer a significant source of 1-propanol.

For the institution, the money can be a significant source of funds.

For years, church life had been a significant source of friendship and support.