Silver prices reveresed earlier losses and settled 37 cents lower to $18.80 while copper closed up 5 cents to $2.94. Gold mining stocks, a more risky but more profitable way to invest in gold, were losing steam. Agnico-Eagle ( AU) was down more than 3% to $62.78 while Eldorado Gold ( EGO) was losing 2.78% to $17.86. Other gold stock such as Harmony Gold ( HMY) and Hecla Mining ( HL) were down at $10.17 and $5.69, respectively. -- Written by Alix Steel in New York.