The White Pine news. [volume] (Ely, Nev.) 1906-1910, 1909-11-12

4NSAAAp AS AO
Beatty, Chas. Hayden; A. Chester
Beatty, consulting engineer; Daniel
c. Jackling, general manager; Kur-
nal R. Babbitt, general counsel.
Capitalization: Authorized capital
stock, 100000 shares, par SIS, 49,
$780, 900; capital stock issued, $425,-
900 shares, par SIS, $2,125,000.
The Chino Copper company's prop
erty, comprising 2,401 acres of which
1877 are patented, is situated in
Grant county, southwestern New
Mexico about 35 miles northwest OIL
Silver City. A branch of the A. T.
& S. F. railroad extends to the prop
erty from the main line.
The Chino Copper company was
formed in May, 1909, to take over
the old Santa Rita property which
had been operated intermittently for
many years. The property is a very
old one and it is stated that it vas
worked as early as 1900 and that
the high grade ores were transported
pack mules to Chihuahua, Mexico,
where they were used in the manu-
facture of copper coins.
The geological formation consists
of quartz diorite and andesite por-
phyry and some sedimentary rocks
are in evidence. The ore bodies
ocur in the andesite porphyry. The
ores are copper, and in addition to
the finely disseminated sulphide ore
native copper is found.
The ore bodies so far encountered
lie in a crescent shaped belt approx
mately 500 feet wide and 1000 feet
on the crescent amounting to rough
ly S3 acres. Outside of this zone
there is probably more mineralized
territory.
The property was formerly work.
ed for it's high grade ores and 1T was
not until recently that the occurrence
of low grade disseminated ore was
discovered, and it is this feature
which is today attracting the atten-
ton of the management. Several OF
the shafts attain a depth in excess of
400 feet. Much of the, early develop
ment was done by leasers who follow
ed the high grade streaks which left
the underground workings extremely
irregular. Owing to this fact, it is
impossible to allow as developed
mucn of the ore exposed in these old
workings. The property contains a
large number of dumps estimated to
contain at least 100000 tons of ore
averaging 2 per cent copper.
Development is being carried on
principally by means of churn drills,
eight of these machines are in opera
ton ana up to the present time about
ITO holes have been drined.
To date six ore bodies have been.
discovered, viz: Romero, Texas Flat,
Whim Hill, Hearst, Chino and Mon
toya. Excepting t he Texas Flat sec
ton the ore averages approximately
85 feet in thickness and the over
burden about SO feet. The Gaping,
however, is much heavier on the Tex
as Fiat. The nomero and Texas Flat
have until recently been considered
as separate ore bodies, but drilling
has demonstrated these to be one.
Portions of the Chino and Romero
ore bodies come directly to the sur
face making them adaptable to steam
%shoveling operation.
The management estimates that
there are approximately 10000 900
tons of developed and 1000, 900 tons
of probable ore in the reserves hay-
ing an assay value of 2.40 per cent
copper. With eight drills in opera
ton it is expected thai this partially
developed ore will soon be changed
to tonnage in sight and that new
probable ore will be added to the
property's reserves.
The property %incluues a mill which
was erected in the early days. This
plant is at present trea,'ng approx
mately 1876 tons. daily, being opera
ted principally in testing the material
from the different ore bodies.
The ores are we'll adapted to con-
centration. Often ~traversing the dis
seminated low grade ore bodies are
streaks of copper sulphide and native
copper, which will bring about a
high figure for average extraction.
1t is the intention of the manage
ment to erect a 1000 ton concentra-
tor in the near future. This will con-
stitute the nucleus of a plant which
will undoubtedly be enlarged as the
development of ore proceeds.
An actual saving of from 60 to 70
per cent has been made on extended
experimental runs, and it is expect
ed that with an u%p-to-date concentra-
tor in operation a 70 per cent ex-
traction will be readily maintained
with a concentration ratio of 12.5
tons into l.
The company's engineers estimate
that a cost of 9 cents per pound will
be attained on $4,000 ton daily basis
1t is possible that this figure may be
decreased if developments demon
strate a large proportion of the ore to
be adaptable to steam shovel opera
ton.
On the assumption that an additi-
onal $4,000 shares of stock be added
to the present authorized c~apitaliza-
ton of 100000 snares, making a
total of 100000 shares outstanding
the property on an operating basis
of 1000 ions per day and an esti-
mated cost of @ cents ner mound. we