11.   Yet in the long run, new methods of finding and extracting gold will keep it pouring out of the bleak stretches of the outback.

12.   Cyanide, which comes in paste or powder form, is a deadly poison used to kill animals and extract gold from ore in mining.

13.   Donald said cyanide also would be used in Suriname to extract gold from ore, but he insisted the process is safe.

14.   Guyana is looking for alternative methods to extract gold following a massive spill of cyanide from a Canadian-run gold mine into its biggest river.

15.   Mercury is used by small miners to extract gold from ore and often contaminates nearby rivers.

16.   Miners at the Colorado site used chemicals to extract gold.

17.   One of its main tasks is to look for alternatives to cyanide for extracting gold.

18.   Prospectors roam across borders, invading Indian land and poisoning the water with mercury used to extract gold from river beds.

19.   Sodium cyanide is considered the most efficient and economic way to extract gold from crushed rock.

20.   The approach suggests that fields of crops could be used to extract gold from ore or mine waste.