1.   A cyanide solution is used in mining to separate gold ore from surrounding rock.

2.   Environmentalists are livid because the mine operators plan to use a cyanide solution to extract gold from Buckhorn Mountain.

3.   The ore is crushed, mixed with dilute cyanide solution and chips of carbon.

4.   The resulting pebbles are washed on the plastic-draped hillsides in a cyanide solution that spurts from an intricate sprinkler system.

5.   The proposal, awaiting final approval from state officials, would use a cyanide solution to separate gold from tons of crushed rock.

6.   A cyanide solution is used to separate gold ore from surrounding rock.

7.   At the mine, a cyanide solution is used to separate gold ore from surrounding rock.