The Idaho Springs siftings-news., 1913-09-13
METALS IN COLORADO
PRODUCTION IN 1912 5000, 600
GREATER THAN IN 1911.
Large Increase Shown In Zinc, Lead
and Silver Output, But Decrease
In Copper and Gold.
western Newspaper Union News Service.

western Newspaper Union News Service.
Mashington.-The gross value Of
Coiorado's output of gold, silver, cop
per. lead. and zinc recovered from
piacers, from gold-silver bullion, and
from ore sold or treated in 1912, was
$37 500 ,966, as compared with $32,41S,-
21S in 1911, an increase in value for
1912 OF Si,902,74S, or Is per cent, ac-
cordins to Charles W. Henderson, OF
the United States Geological Survey.
These figures are compiled and tabu-
lated strictly as mine report and
with reference to the locality of each
individual mine, and not with refer
| ence TO the locality of the shipping
point OF the product.
The production of gold in Colorado
In 19l2 showed decrease in value OF
$4l3,4lS of silver, an increase of $751;
S02 ounces; of copper, a decrease OF
917,1S5 pounds; of lead, an increase OF
5,o62,9fS pounds; and of zinc figured
as spelter and zinc in zinc oxide) an
| increase OF S7,615,356 pounds. With
increased market prices for silver.
copper, and zinc, there We're increases
in value of s169,644 for copper, $l,165.-
ABA for silver, s250.334 for lead, and
| $3,730,7i9 for zinc
Cripple Creek Principal Gold Pro-
ducer.
| The output OF Cripple Creek in
1912 showed an increase of $445,709
| in gold, the production being $l1, ,00S,-
| 1852, or So per cent OF the total gold
yield OF the state. The shipments OF
| medium-grade ore from Cripple Creek
to the custom milling plants showed
small decrease, but the shipments OF
| the hgher-grade ores to smelters
| showed a small increase and also an
increase in its average content of gold,
| as well as heavy increase in low
grade dump and mine ores sent to
| cyanide and cyanide-concentration
mills in the district, and also an in
crease in amounts recovered from old
tailinss shines, and "clean up" Of
closed mills. In 1912 cyanidation COM
pletely superseded chlorination in the
treatment of Cripple Creek ore. The
San Juan region, in Dolores, La Plata,
Ouray, San Juan, and San Miguel coun-
ties, showed a decrease OF 5000, 900 in
output of gold, Ouray county showing
| the largest decrease. There WAS also
| a decrease In output from La Plata
county, but an increase from San Juan
county Other counties showing an
increased output of gold were Chaffee,
Gilpin, Eagle, Park, and Summit. The
placer output Of gold was s423,SS5. an
Increase of $104.126 over the output
o. 1871.
i-eadviIIe Leads In Output of Silver.
Leadville Uake county continued to
be the chief siver-producing district
of Colorado. it's output being S,O00,397
ounces, which represent 81 per cent
OF the state yield The chief silver
producing counties in Colorado in 1912
We're Lake, San Miguel. San Juan, Min
eral, Ouray, Pitkin. Clear Creek, and
! iilpin, in the order named these coun-
ties confined furnished 50 per cent
of the total state production. Notable
Increases in output of silver We're
shown in San Juan, Mineral, and San
Miguel counties, and notable de-
creases in La Plata and Clear Greek.
Decrease in Copper, Increase in Lead.
Copper production in Colorado de-
creased from s,024,4SS pounds in 1911
to 7107,303 pounds in 1912. Lake.
| San Juan, San Miguel. Dolores,
Clear Creek, and Ouray counties,
| in the order named, We're the
largest producers, Lake county
alone furnishing 20 per cent,
San Jaun, Is; Gilpin, IA; and the
seven counties combined, 80 per cent.
The production of lead in Colorado
increased from 69,679,2s9 pounds in
1911 to 75,242,267 pounds in 1912.
Lake county ranked first, and was fol-
lowed by San Juan, Pitkin, San Mi
guel, Mineral, Summit. and Clear
Creek counties, in the order named.
Zinc Output 100000 Lbs. Greater.
The zinc output of Colorado Gin
| terms of spelter and zinc in zinc
oxide) was 132,222,S12 pounds in 1912
as compared with 94,607, ,456 pounds in
| 1911, an increase for 1912 of $685.
| $50 pounds in quantity and of $780,
/ 749 in value. Lake county, with an in
| crease for the year of 34,335, ,337
| pounds, furnished 105 5,945.7S3 pounds
or so per cent of the state yield. The
output Of zinc carbonate ore from
Leadville was 142,7S2 tons of 29.2 per
cent zinc, against S3,9o5 tons of RI
| per cent zinc in 1911.
| Increased production of zinc was al.
so made in Chaffee, Clear Creek
Dolores, Eagle, Fremont, Ouray, Pit
kin, Saguache, San Juan, and Sum-
nit counties, and appreciable de-
creases were made in Mineral, Park.
and San Miguel counties. Zinc pro-
duction in concentrates amounted to
| 46,053,954 pounds, and in crude ore to