Bisbee daily review., 1910-05-10
NEW GLOBE MINES WILL
PRODUCE I14,OOO,0OO POUNDS

mine its ore by extraction doltS OF
By the comparatively inexpensive
system commonly known as the mill
hole" method, the cost of copper
production should at least not ex-
coed the Miami Copper Co.'S figure
Of nine cents a pound.
The management of the inspiration
Copper Co. has mentioned building
5000 ton concenrator. Il is not
likely. however, that the company
will produce ore TO tax such reduc-
ton plant to capacity. II may be as
sumed that the Inspiration mill viii
begin operating with an initial treat
ment of 1000 tons of ore daily and
gradually Increase its ore supply TAX
en- from the Inspiration miae TO S.000
tons a day. Assuming 5000 tons daily
to be the output of the Inspiration
mine shortly after the mill is put in
operation. nearly 100000 pounds
of copper should be the annual pro
ductioa from this property for a per
Tod of "a years. # we assume the ore
body to be $1,000 900 tons
Next to be considered is the Live
Oak mine. where fully 100000
tons of sulph.de concentrating ore
has been put into sight. All this ore
has been developed within an area
Of less than four acres and surface
indications make possible an area OF
| rs acres underlaid with sulphide ore
of a thickness as yet undetermined
since the shaft already sunk so feet
below the third level is still IN ore.
The upper limit of the suiphide ore
body is about 200 feet from the sur
face.
The Live Oak mine is still in an
early stage OF development. but there
is every reason to believe that two
years hence. or say january l. 1913.
production can be commenced at the
rate OF 1000 tons daily. If half Of
the 10 acres which engineers believe
is underlaid with ore is productive
and the present four acres partially
explored is productive OF 2.500,000
tons OF ore. the sulphide ore body
would amount to more han 22.500 Geo
tons and thus assure the property of
being a producer al the rate of 2000
tons daily for over thirty years. In
itial tests made on the ore show IS
per cent of copper with a poss Bile re-
covery of - per cent Thus 2000
tons of ore. the supposed daily out
put would yield 20 600 pounds OF cop
per a day.
The Live Oak Co. has not yet, OF
course. made derinite plans for a mill
but concentrating tests are being
made as a basis for specifications
The fourth low grade mine Of the
Miami district IS that OF the New
Keystone Copper Co, adjoining the
Live Oak on the north and east
While the management has never an
nounced any estimate OF an ore body,
| the underground work combined with
| extensive churn drilling makes a con
| sentative estimate of the ore dimen-
sions. as indicated in operations. SOC
feet long. 400 feet wide and 200 feet
| thick With these dimensions as d
| basis the Keystone mine has at pres
ent no less than 2.2OO.O00 tons OF ore
which. according TO the management
| should average over . per cent cop
! per Assuming , per cent to be the
average copper conten and allowin2
for a 70 per cent recovery in threat
ment, the copper output would be
with an average daily production o.
600 tons. beginning. say January /
1912, 10000 900 pounds OF copper
which should, as at Miami. Inspir
alton and Live Oak. operating unde
similar conditions. be produced a
| nine cents a hound