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GOLD AND SILVER.
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245
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Bingham
district in this county yielded 2,028,496 ounces in 1912, against
2,786,810 ounces in 1911. Summit County produced 2,954,028 ounces,
against 2,882,825 ounces in 1911, chiefly from lead ores but also from
lead-zinc ore and in small quantity from siliceous ores. The Park City
region, lying mainly in Summit County but also in Wasatch County,
produced 3,642,749 ounces of silver in 1912 (from lead and lead-zinc
ores), an increase of 214,098 ounces over the output of 1911. Of the
total silver production of Utah, mainly the result of smelting,
2,247,050 ounces came from lead concentrates, 5,073,891 ounces from
crude lead ore shipped, 3,410,636 ounces from dry and siliceous crude
ore, and 2,187,869 ounces from crude copper ore shipped to smelters in
1912.
WASHINGTON.
Gold.—The
gold output of Washington in 1912 was $680,964, against $847,677 in
1911. The decrease of $166,713 was reported due to changing conditions
of metallurgy (not fully completed) at Republic district, in Ferry
County. More than 97 per cent of the gold production came from
siliceous ore, chiefly from Ferry County. Crude ore shipped to smelters
produced $515,362 in gold in the State in 1912, and mill bullion
contained $160,694. The output of Ferry County was $605,698 in gold,
against $778,526 in 1911, and of these amounts the Republic district
supplied $594,873 in 1912, against $772,874 in 1911.
Silver.—The
silver production of Washington was 413,538 fine ounces in 1912,
against 243,781 ounces in 1911, the gain being due to increased
quantities of crude copper ore shipped to smelters almost entirely from
the Chewelah district, in Stevens County. The siliceous ores of Ferry
County contributed 152,224 fine ounces of silver in 1912.
WYOMING.
Gold.—The
production of gold in Wyoming in 1912 was $22,235, against $19,200 in
1911. Of this output $21,449 came from siliceous ores of deep mines,
against $12,159 from this source in 1911, and $766 came from placers,
against $7,041 from placers in 1911. A nominal quantity of gold was
derived from copper ores in 1912. The principal output of gold was from
the Atlantic City (South Pass) district, which produced mill bullion,
cyanide precipitates, and placer bullion. The Shoshoni dredge, on
Bighorn River, was closed down after a short trial run and operations
were discontinued.
Silver.—The
silver production of Wyoming was 265 fine ounces, against 725 ounces in
1911. The output was mainly from siliceous and copper ores. The Rambler
copper mine, in Albany County, again produced copper ores carrying
platinum and palladium in commercial quantities.
PHILIPPINE ISLANDS.
Gold.—The
gold production of the Philippines was $570,212 * in 1912, against
$189,953 in 1911. The output is almost wholly from gold-quartz ores and
from placers. Dredging in the Paracale district of southeastern Luzon
has been of growing importance, and the production of gold from
oxidized ores by the well-equipped plant of the
1 Press Bulletin No. 16, Bureau of Science, Manila, June 6,1913.
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