The Calumet news. [volume] (Calumet, Mich.) 1907-1938, 1912-03-23
MINES AND MINING, STOCKS
BUTTE & SUPERIOR.
Remarkable Transition from Copper
Prospect into Zinc Mine.


one of the most extraordinary de-
Velopments which has ever taken place
I'm the Butte camp has been the tran
sition OF Butte & Superior from cop
per prospect into a zinc mine. Several
hundred thousand dollars had been eN-
pended in Ruthless search for a COM
mercial copper vein in the company 5
lands located less than half mile
north OF North Butte In sinking it's
SHAFT the management ran into body
of zinc ore and from the 50O-loot level
down 10 1000 feet the ore has been
continuous
The company has two we'll defined
vein systems within its 1856 acres-the
Jersey Blue system, with a northwest
southeast trend. and the Black Rock
system. with southeast-southwest
trend the junction OF the two being
in the easterly portion OF the Black
Rock claim. The company has already
developed. it is figured, 100000 tons
of ore. running p per cent zine. There
are also important silver values, the
average being eight ounces OF silver
per ton. with a trace OF gold. In tact
last year. which was a period OF re-
stricted operations, The company Sc
cured sac. 900 from its by-products.
These by-product recoverics should
amount TO fully 100000 this year.
Captain a. b. Wolvin. OF Duluth, who
is president OF the company. says.
The Butte & Superior has at the pres
ent time about 1000 feet of lateral
openings, ana II may be said that we
have scarcely made more than a begin
nmg While We are down to a depth
of 500 feet this by no means meas
urcs the limits OF our property. as at
this point we have the highest grade
ana strongest tense of ore in the mine.
cur new mill, capable OF treating 1000
tons of ore day, should be complet-
cd In June. although we Will be secur-
ing some concentrates from the new
mill in May. The geological structure
OF our ores is entirely different from
that Of the Joplin ores. In Joplin the
ore is obtained from a so-calied sheet
deposit, while in Butte we have true
fssure veins. with the zinc impregnat.
ed i'm the granite. our ore is retrao, /
tory, but We have discovered n process !
10 which it is amenable. and which |
has been found to give splendid salts
faction.
We have in many respects one of 4
the most wonderful zinc deposits in 4
this country II is safe to say that 1
within the boundaries of present de-
yelopment work, the property can be /
depended upon 10 yield 100000 tons /
of - per cent ore, although, OF course, /
we have actually developed only about /
half this tonnage We have expended /
over 100000 in metallurgical expert /
ments seeking to ascertain the best and /
lowest just method of recovering our
values. ! have told my associate di-
rcctors that our new mill should make
possible "a treatment cost OF IS per ton.
after applying byproduct credits 20
tho mining and milling costs. am
sure. however, that we can do the bust
ness for very much less than this.
With present prices for Spelter IL /
should be no trick at all for MS 10
show profits of between $4,000 aid /
100000 per month. OF course, all my /
estimates as 20 the future have been
based on six-cent spelter. while spelter
is now quoted at 6.75 cents per pound"