gold weakened for a third straight day on wednesday sending it to its lowest level in roughly two weeks as the strong us dollar and rising treasury yields continued to weigh   gold futures gcz22 expiring in december were off by 9 or 05 to 1765 per ounce on comex   silver futures siu22 expiring in september retreated 33 cents or 16 to 19755   palladium futures pau22 expiring in september were down by 2050 or 09 to 213050 while platinum plv22 futures expiring in october were down 850 or 09 to 923 per ounce   copper futures hgu22 expiring in september were off by two cents or 05 to 360 per pound what analysts are saying jim wyckoff a senior analyst at kitco attributed the pullback in gold and silver this week to two primary factors weak economic data out of china and a rebound in the us dollar and treasury yields “gold and silver prices are lower again in early us trading wednesday amid worries about demand for precious metals following this week’s downbeat economic data coming out of china and stillheightened worries about a us andor global recession” wyckoff said the ice us dollar index dxy  a gauge of the dollar’s strength against a basket of rival currencies was up 03 while the 10year treasury yield ty00 was up 64 basis points to 2887