Bisbee daily review., 1910-06-10

Miners WORKING IN the bthh-AAA
iona mine at Risbee, have run into
very rich ground in drift No. To-
which is being pushed south towards
the Briggs shaft Of the Superior &
Pittsbu-g company's operations 1he
ore is and oxide OF the character OF
that of Calumet & Arizona and Cop
per Queen where il has been full OF
native copper and yielding any where
from 10 20 40 per cent copper
The discovery at the DEM bears
out what the best judges OF the ore
formations OF the Bisbee camp have
always contended that the Briggs
should make the richest mine IN an
the Bisbee basin with lite splendid
record for high-grade ground and
bountiful dividends. One could gather
no other opinion were he TO take
the pains to go underground in the
developed shafts Of the camp. then
take a look about the surface, take
look about the surface. noting the
strike of the big channel in which
nearly all the richest ores. up 20 this
time. have been encountered.
Risbee's ores are found in the lime
stones. being dispositions in the form
OF pockets. or lenses. the influence
OF the intrusive porphyries having
been great in the forming of these
mineral deposits. but up To the pres
ent time tle porphyries have been
barren of copper wherever tried in
this camp. There are a few shafts
showing in this rock but no copper
worth while was found by any OF them,
and il has come 10 be known by the
miners OF that field that the porphy-
ries there are ValuelesS TO the men
seeking this metal The part the por-
phyries have played in copper depo-
sitiOn In the limestones is recognized.
however. and the prospector pays par
ticular atterrion to the lines with the
red porphyry outcrop close at hand,
seeing in this an ideal location.
In all copper camps where the por-
pryries are the rock holding the cop
per. the average of the ore runs con
siderably less than in mines where
the limestones are the ore enclosing
material. II is the more regular as
well as the larger areas that make
he porphyry ores attractive to the
miner
In the Ely camp. Nevada, the Gil
-rOux company has shown that there
are rich ores in the limestones. al
though thus far all the copper pro
duced has come from the porphyTetic
rocks which are here most prOnounc-
ed and OF great extent. The recent
discoveries by the GirOuX company
indicate that the Hmestones may be
productive OF copper of very high
grade and in marked contract. in this
respect. 10 the ores being steam show
eled by the Nevada Consolidated
company az q location at the east
ern end Of the claims OF the Giroux
company.
The importance OF the lands hold
ing the Briggs shaft were seen years
ago by several Of the gentlemen now
concerned in the properties known as
the Bonanza Circle group. At least
one OF the number insisted upon tax.
ing over lands that now hold the ia
nous Lowell mine OF the Copper
Queen company, the possession of
which would have paid all the costs
Of the entire group in dividends. The
claims Of this particular location could
have been had at low price. but
| IL was not paid. those interested. as a
/ majority declaring against the pur
I chase. 1t was fortunate, as it will re.
suit. that the claims holding the pres
! eut Briggs shaft We're obtained. II
| has taken great sum Of money tc
free the claim of water as to this
point the water OF the entire Bisbet
/ basin seems to flow. it being in the
tlannel through The water Of the
camp evidently settles. That it oc
( cUpies a lower position than any o.
the other mines with reference &,
this water area is also fact as tn,
pumps at the Briggs have shown
For several years it was ver7
: discouaging task. this steady pump
ing Of a seemingly endless sea Of wa
ter There we're not a few share
holders who complained Of the cx
perse. claiming it would be better Z,
quit at this point and TO devote thei
attention 10 other places. but it wa
important for other deep working
that this water be relieved. this al
SO including the operations OF tn,
Copper Queen company which. We be
lieve. now share I'm a portion Of tn
expense incurred in draining Of tn
basin, though many mining Organize
tons occupying a similar position 4
the Queen might not contribute ans
thing 70 the cost Of such task. ]
shows, ii true. that the Copper Queer
Is a pretty good neighbor. a reputa
ton il has long been credited witt
There is an arrangement between i
and the Bonanza Circle concerns &
observe verticie lines. too. which j
very important in the mining OF IN
ore deposits Of the camp. Il save
costly litigation, FOR wherever ther
Ia an apex law enforced il is accom-
panied with much expensive and BIZ
ter legal difficulties. as witness til
Ojib s. - . ~ :
Inspiration ...... ... 80 . :
! fsf,sr. .