The silver state. [volume] (Winnemucca, Nev.) 1909-1925, 1912-01-04
LEAD And ZINC
OUTPUT LAST YEAR


/ 1911. This statement is compiled by
| C. T.. Siebenthal from the most relia-
BILE sources available at this time. 1t
appears probable that the mine pro-
duction of domestic lead in ore in 1911
made gain Of between $4,000 and 30
900 tons over the 395,313 tons produc-
ed in 1910, which, when compared with
the estimated increase in the smelter
production of domestic lead, 35,987
tons, indicates that domestic lead ore
stocks at the smelters were consider
ably depleted during the year. This
is emphasized by the fact that a large
stock of lead ore was accumulated at
a western lead smelter now under con-
struction.
1t is believed that the mine pro-
duction of recoverable zinc in ore was
about 10000 tons greater than the out
put of327,71 tons in 1910. The in
crease in the output of domestic spell
ter in 1911 was apparently 21,32S tons
The quantity of zinc recovered as zinc
pigments is not known at this time,
so that conclusions as to zinc ore
stocks cannot be drawn.
Production in the West.
! The zinc production of New Mexico
I
duction Of lead ore remained about the
some as in 1910.
| Tn Colorado the production of lead
ore was slightly less in 1911 than in
the preceding year, but there was an
increase in the production of zinc,
due chiefly to the large shipments of
zine carbonate ore from Leadville. For
several months the output of this ore
Uas IF
but the totol for the year is estimated
at $4,000 tons containing 80 per cent
or more of zinc. If the plan to drain
the lower flooded mines of the Lead
vile Downtown district is put into ex-
ecution the output of zinc carbonate
ore will doubtless be much augmented.
The production of zinc sulphide at
| Leadville fell off on account of the
closing down of the Yak tunnel An
electrostatic separation plant was in
stalled at the Sunnyside mine at Sill
verton.
The Montana output of lead in 1911
increased over so per cent as a result
of larger shipments from Beaverhead,
Cascade, Jefferson and Lincoln coun-
ties. The production of zine also
was nearly 40 per cent larger The
Superior and Elm Orlu mines The
ore of the latter mine was concentrate
ed at the Butte reduction works prior
to the burning of that plant in Oc-
tober. The Butte & Superior ore was
concentrated at the Basin reduction
works, by means of flotation process.
Work on new 500-ton concentration
was started near the close of the year.
The lead output of Idaho made a
| gain of over Is per cent over that of
1910 and was the greatest since 1905.
This output was derived almost en-
tirely from two mines at Gilmore,
/ Lemhi county, and from ten mines in
the Occur d'Alene region The zinc
production gained nearly 40 per cent
over that of the preceding year. For
years the Success mine was the only
important zine producer, and it yet
remains the largest. Other producers
in 1911 were the Surprise mine at
Wardner, the Monarch and Paragon
mines at Murray and the Morning
mine at Mullan, the last recovering
zine by flotation process. A new mill
was built at the Monarch mine.
Utah had an increased production of
lead, amounting to a gain of s per
cent, the greater part of which should
be credited to the Park City district.
The Bingham district produced about
the same quantity of lead ore as in the
previous year, but the Tintic district
fell off somewhat. The zinc output
was decreased nearly 80 per cent from
that of 1910 owing to smaller zinc
shipments from Beaver county and the
Park City district.
The lead production of Arizona
more than trebled that of 1910 and
was much larger than ever before. The
increase is due in part to the increased
output of the Warren district of
Cochise county, and also to a larger
production in Mohave county. The zinc
output showed slight gain and was
derived altogether from Mohave coun-
ty, principally from the Golconda mine,
at Union Basin. The new mill at the
Golconda mine and the concentrator
and electrostatic separator at Needles,
California, were operated steadily dur
ing the year.
| Nevada s lead production fell off
about per cent, largely ON account of
the idleness of the Richmond Eureka
mine. Clark county had the greatest
county output derived from lead zinc
ores and also supplied almost the
whole zinc production of the state.
The Potosi and Yellow Pine mines
We're the chief producers of zine, of
which the state output in 1911 increas-
ed more than 60 per cent over the pre-
ceding year. A Cotton mill was built
at the Yellow Pine mine.
The lead production of California
remained about stationary and was all
obtained from Inyo county Thera
has been no zine production since 1908
until the past year, when the output
amounted to over 1000 tons, derived
from Inyo and San Bernardino coun-
ties
Washington entered the zinc produc-
ing column in 1911 for the first time
in her history. The output was of
leadzinc ore from the Ooriole mine,
near Metaline Falls, Stevens county
The same county supplied the total
laa1 pra1noal II, +b. o+a+o xx,b..L