OCR Text |
Show oo PRODUCTION OF QUICKSILVER. The world's production of quicksilver quicksil-ver in 1910 was 3.399 metric tons of 2,204.(5 pounds each, against 3,304 tons In 1909, 3.29C tons in 190S and 3,307 tons in 1907. Spain is tho largest producer, pro-ducer, furnishing nearly a third of the iuum woria-s supply irom trie ramous Almaden mines. The United States, Austria-Hungary and Italy have in turn held second place, this country rinking third in 1910. The Imports of quicksilver Into the United States for doraostic production are now nominal, having been In 1910 only 667 pounds, valued at $3S1, although al-though the values of the Imports In the preceding throe years varied from $0,000 to $S,000. The exports of quicksilver quick-silver in 1910 were 144,237 poundB, valued at $91,077, against 510,141 pounds, valued at $266,243 in 1909. The chief market is now Canada, followed fol-lowed by Mexico. x Producers reported the mining of 132, S13 tons of ne wore available for troatmont In the United States In 1910 and tho treatment during the year of 123,562 tons of ore, Including small amounts of crude ore concentrated before be-fore reduction. In California 115,306 short tons of crude ore were treated, producing 15,-S2& 15,-S2& flasks of quicksilvor, Indicating an average recovery In metal of 0 5 per cent of the ore treated, or 10.3 pounds to the ton. In addition, old material treated produced 1.3S6 flasks of quicksilver. quick-silver. In 1909 a total of 144.9S9 tons of ore treated in California yielded an average recovery of metal of 0.4 per cent, or eight pounds of quicksilvor to tho ton. These figures indicate average aver-age gross returns per ton of $6.39 In 1910 and of $4.85 in 1909 and show that In quicksilver production on a considerable scale tho total coHts aro low. In Texas 8,221 tons of ore were treated In 1910, yielding an average of 1.5 per cent of metal, or 30.3 pounds of quicksilver to the ton, against 9,107 tons In 1909. yielding 1.7 per cent, or 34.5 pounds of metal to the ton. In Nevada about 35 tons of ore wore treated in 1910, yielding 7.5 per cent or 150 pounds of quicksilver to the ton. In the entire United States 12,-5C2 12,-5C2 short tons of crude ore were tveated in 1910, yielding an average of 0 6 per cent of quicksilver , or 11.7 pounds to the ton, with a gross value of $7.26. In the preceding vear 151,502 I tons yielded an average recovery of 0,5 per cent, or 10 pounds of metal to tho ton, vnlued at $6.09. United States Geological Survey. rn |