The Idaho Springs siftings-news., 1914-07-18

pounds Of copper. 2s.2s6,1sS pounds OF
lead, and 93.s42,ST pounds ~ zinc
representing 79 per cent of the state
yield, with total value OF 1898, 433.
as against $11.iS0.131 in 1912. The
output of zinc carbonate was 135,760
tons OF PAS per cent zinc. against
142,7S2 tons OF 29.2 per cent in 1912
The production of zinc sulphide
shipped was 94,636 tons OF % per cent
zinc, as compared with 1o4.14S tons OF
"a per cent in 1912. Other classes OF
ore from Leadville showed little
change from 1912. The zinc carbon
ate ore was treated at zinc oxide
plants and zinc smelters in Kansas,
Oklahoma, Illinois and Wisconsin.
The larger part of the zinc and zinc
lead sulphide ore was first treated at
the sulphuric acid plant and magnetic
separation and wet concentration
plant OF the Western Chemical Com
pany Of Denver, at the magnetic sep
aration plant of the Empire Zinc Com
pany at Canon City, at the magnetic
plant OF the United States Zinc Com
pany at Pueblo, a small tonnage be-
ing treated at the Leadville district
mill by wet concentration at Lead
vile. Zinc concentrates and the bal
ance of the zinc and zinc-lead sui
phide ores were treated at sulphuric
acid plants, zinc oxide plants, and zinc
smelters in Colorado. Kansas Okla
homa. Illinois, Ohio. West Virginia
and Wisconsin. Lead and iron con-
centrates from the milling plants and
residues from the sulphuric acid
plants and zinc smelters we're Tin
some cases) returned to lead smelters
in Colorado. where were recovered
part OF the gold. silver. copper and
lead contained in the original ores.
The San Juan region of Dolores, La
Plata, Ouray, San Juan, and San Mi
guel counties produced s4,072.40O in
gold, 2,769,oS0 ounces OF silver. 3,373,-
935 pounds OF copper, 21,740.502
pounds of lead, and 6,867,41O pounds
Of zinc, as compared with $i,115,345
in gold, 1862, ,096 ounces of silver, g.
000,173 pounds OF copper, 2O,752,156
pounds of lead, and 6,375,O73 pounds
of zinc in 1912. There was an increase
for gold of 1858 in Dolores, $177,500
in La Plata, and s134,03S in San Juan;
and decrease Of s90,213 in Ouray,
and s2G9s63 in San Miguel. There
was an increase for silver Of 1881
ounces in Dolores. 1s5,435 in San
Juan, and 1914 in La Plata, while
there was decrease of 1o2,C13
ounces In San Miguel county Dolores
county (Rico) made large increase
in the yield of copper, lead and zinc,
but the production of lead fel. off
heavily in San Miguel and Ouray
counties.
Chaffee county produced $312,S92 In
gold, 1GS,9S5 ounces of silver, 315,O11
pounds of copper, 2,9sa,59O pounds of
lead, and 2,121.947 pounds of zinc,
with total value Of s714.157, as com
pared with s279,3S7 in 1912.
Boulder county's yield of gold bull
lion decreased almost one-half and
there was also a decrease of 1900
ounces of gold in ores smelted. but
the silver output increased 9O,O49
ounces. and the lead, 103,67s pounds.
The total value for 1913 was 1S9,33O,
as compared with s1S1,333 in 1912.
Clear Creek county's output was
V'o-'ic III bciNs foo,oAf oullCtS vi Sill
yer, 426,393 pounds of copper, 3999,-
G14 pounds of lead. and 1,4S9,5lS
pounds of zinc, with a total value or
$1,004,l26, as compared with $l,O2S,-
16c in 1912. Gilpin county's output
decreased s217,404 in gold and 42,9oS
ounces Of silver, with decreases for
lead and copper, the total value being
sl,o35.740. as compared with $780,
1876 In 1912. Ore mined in Gilpin coun-
ty through the Newhouse tunnel has
been properly accredited to Gilpin
county.
The Pitkin county (Aspen) yield
was o62,30S ounces of silver, and IT,
52S,3S6 pounds of lead, an increase of
33,S04 ounces and 9,123,053 pounds,
respectively.
Creede (Mineral countyl produced