The semi-weekly miner. [volume] (Butte, Mont.) 1882-1886, 1886-01-06

not kept running CONTINUOUSLY, ail0 uuI'
ing November and December they were
turning out from 20 to so tons Of matte
per day
THE ANACONDA WORKS
consists of a concentration having II setf
Of rolls and Y jigs, the capacity OF which
was rated at 500 tons, but which will not,
when it gets into full running order, ex-
coed 400 tons per day of concentrating
ore. The smelling plant includes 26
calciners and rs mating furnaces, to
which are being added II new hand
roasting furnaces. There has been in
contemplation the erection of a new con-
centrating works equal in capacity TO the
one now running, but the last propo-
sition is to put in a large compound en-
CINE to assist the present water-power,
and in this manner make the most OF
the plant A new addition to the smelt-
ing plant of 6 calciners is building. 1t is
festimated that when these contem-
plated extensions are completed in the
course of the year, the plant will have a
capacity of 100 tons of matte per day.
How far these expectations will be re-
allied remains to be seen. 1t is urged
that the railroad facilities of the works
are not equal to hauling the enormous
amount of ore which such a product
would represent. On the other hand
the plant has thus far been at work only
three months in 1884, and it is impossible
al this time to judge from its record
what its achievements will be when the
entire works are systematized. 1t is
estimated by persons well qualified to
| Judge that even when strained to full ca
paeity the Anaconda will not Ill 1885
turn out more than $4,000 to 10000 tons
of matte, equivalent to about ~25,OOo,0OO
to So, OOO, 900 pounds of fine copper.
UNOFFICIAL.
1t is just to state in this connection
that the above data are not official. They
have been gathered from various our
ces and are presented in the abesnce of
official statements as the best infor-
nation available. Since the Anaconda
works were built they have been very
much improved and are now pronounced
by leading metallurgists to be fully up to
the best practice. The mine has become
SO great a factor in the position of the
copper supply that as close an approx
nation as possible to IN estimate of its
capacity is 50 important that such details
as are available should be presented.
The mine itself is generally pronounced
an exceptional one, and it is believed
that with the best machinery and plant
it is good for a much larger yield than
GOO tons daily for a number of years.
The investment in development and
equipment has been very large, and so
far as the latter is concerned has not at
first come up to expectations. Good
authorities place the limit of cost, at the
prices of labor and fuel at the close of
1884, at about "a to 8 cents, below which
only reductions in the items mentioned
can force it.
THE MONTANA COPPER COMPANY
has made large developments in the
East and West Colusa and in the Origi-
nal Parrot mines. The plant has been
enlarged during 1884, and now consists
Of two concentrating mills, each with a
capacity Of IS tons of ore per day, one
being used for the Parrot ores and the
other for the argentiferous Colusa ores.
The smelling works have twelve rever-
beratory calcining furnaces, six rever-
beratory mating furnaces, each capable
of turning out two. tons of fine copper
daily, and one blast furnace for ferrugi-
nous ores, which produces four tons of
fine copper daily. The policy followed
during the year 1884 has been to extract
those ores carrying large quantities of
silver, leaving those lower in silver
though high in copper untouched with a
view to overcoming the low price of cop
per with the aid Of the silver. In the
future more copper ore lower in silver
will be extracted, and the out put of the
works will be increased accordingly. In
1884 the matte averaged about a ounces
of silver per ton of fine copper.
THE PARROT SILVER AND COPPER COMPANY
has two concentrating plants, one of 100
tons and the other of $50 tons daily capa-
city. Iii an older plant of six calciners,
capable Of roasting s tons per furnace,
and six new calciners, each 81 feet long
and Is feet wide, which work II tons per
day each, with a consumption of wood
of two cords per twenty-four hours. It
has an older mating plant Of six reverb
atory furnaces with a daily capacity of
treating l6 tons of ore per day, and a |
new plant, consisting Of an SO-ton blast
furnace provided with a large we'll from
which the molten matte is tapped direct
ly into a Manhes converter, which has
in successful operation during the
last months of the year making blister
free from arsenic from a rich
matte, at the expense, however, of
heavy losses of silver. The ore has not
been running up to average, owing to the
TACT that a different system of stopping
been adopted. The matte carries
an ave rage 80 ounces of silver per
INT Ramsdell-Parrott mine has shi D.
considerable ore to local smelters.
which 1t is reported averaged about 20
Der cent of copper and IS ounces O fsilver.
t has recently improved its hosting
The Bell company has a plant capable
# treating 20 tons of Is per cent, ors
ially, making 90 per cent. matte, euuiva-
ent to 1000 tons of copper per annnm.
The works of the Colorado and Mon
ana Company treat ores particularly
lch IN silver, making a high grade matte
which is shipped to the Argo works Of
the Boston and Colorado Smelling COM
'any. The quantity Of copper made is
comparatively small, and goes into
channels than the bulk of the
Montana product.
Strong Indian Talk. 1
Says the Minneapolis Tribune: It is
certainly high time to put a final end to
Aponho ofro.f;oc %I,k I.-