The state herald., 1914-01-02
COLORADO'S 1878 METAL PRODUCTION '
GsTMATED OUTPUT OF OVER
GOLD DEcREAsEp SILVER, LEAD INCREASED

Washington.-The output Of Colo
fado mines for eleven months Of 1918
with an estimate for December. ac-
cording to preliminary figures by
Charles w. Henderson, OF the United
States Geological Survey, shows pro
duction of $18,395. 900 in gold, 9,150. 900
ounces OF silver, S5,500,00o pounds Of
lead. 7,634,O00 of copper, and 129,6S0,-
900 pounds Of zinc lin terms of spell
tsr and zinc in zinc oxide), with to
tal value of $36,200, 900. compared with
&37,320,996 in 1912. This shows a de-
crease of 100000 in gold. an increase
Of 100000 ounces Of silver, an in.
crease of 10.3OO,OOO pounds of lead, an
increase Of 100000 pounds of copper,
and decrease Of 2,640,00O pounds OF
zinc. The heaviest decrease in value
was $1.7S2.000 for zinc, and there were
increases Of $4,000 for silver and
&877,000 for lead.
The tonnage treated by the Globe,
Leadville, Pueblo and Salida smelters
showed an appreciable increase for
the year. An increased tonnage was
also shipped to the Murray. Garfield
and Midvale plants in Utah. Cyanide
precipitates were shipped to Omaha.
The United States Zinc Company's
magnetic plant and smelter at Pueblo
was operated steadily.
The output of Cripple Creek
showed an increase of $4,000 in gold.
The Roosevelt tunnel continued to low
er the water level gradually. In the
Vindicator and Golden Cycle mines
electric pumps were installed. Lower
levels were opened during the year.
The Golden Cycle and Portland cya-
nidation mills at Colorado Springs
were operated steadily, with an in
creased output. Cyanide mills in the
district also made an increased yield.
The Standard chlorination and cyanid-
alton plant at Colorado City was idle,
but the Union cyanidation plant at
Florence was operated part of the year
on old tailings. The tonnage Of smelt-
ing ore from Cripple Creek decreased
slightly.
Value Of Leadviiie Output Declines.
Lake county (chiefly Leadville, but
for 1913 including the Lackawanna
Gulch districD produced s9s1,i16 in
gold, 100000 ounces Of silver, 2,000.-
900 pounds Of copper, 2S.000,000
pounds of lead and 9S,000,O00 pounds
OF zinc. with total value OF 100000
900. as against 11.7S0,13l in 1912. The
output of zinc carbonate was $4,000
tons of approximately 27 per cent zinc,
against 142.7S2 tons of 29.2 per cent
zinc in 1919. The production OF zinc
bulphide shipped varied little from the
l0i,l4s tons Of "a per cent zinc In
1912. The zinc carbonate ore was
treated at smelters In Kansas. Okla
homa, and Wisconsin and the zinc sui
phide was treated at the Empire Zinc
Company's magnetic separation plant
at Caiion City, Mt the Western Chem
ieal Company's wet concentration and
magnetic separation plant at Denver,
magnetic plant and smelter at Pueblo.
and at the zinc oxide plant at Coffey-
VILE, Kans.
The San Juan region OF Dolores, La
Plata, ouray. San Juan and San Mi
guel counties produced si.llG.0o0 In
gold, 2.SiT.00O ounces OF silver. 2i,i65..
600 pounds OF lead. 3.GS0,0O0 pounds
OF copper. and approximately s.0oo.-
600 pounds OF zinc. compared with 81.
lI5,3l5 in gold. 2.5G2. .O96 ounces OF
silyer. oO75ol5G pounds OF lead, g.
OOO,i7s pounds OF copper and G.S75,o73
pounds of zinc In 1912. There was an
Increase for gold of $1,000 in Dolores,
sl5s,oO0 in la Plata, $4,000 In Sen
Juan: and decrease OF s6l,000 In
ouray and OF s22+.o00 In San Miguel
county. There was an increase for sill
yer OF 100000 ounces in Dolores, 200,'
900 in san Juan. and 1000 In la
Plata. while there was decrease OF
$4,000 ounces In San Miguel county.
Dolores county Rico) made large