The Goldfield news and weekly tribune. [volume] (Goldfield, Nev.) 1911-1947, 1914-05-23
CON. WILL TREAT
JUMBO EX. ORE
TO MILL AT BONNIE
CLARE TO CEASE
JUNE 4.

Unless present plans mlscarry, the
Jumbo Extension Mining company
will, according to Manager ]. K. Tur-
ner. cease on June 1. sending ore to
its leased mill at Bonnie Glare, south
of Goldfield, and begin shipments to
the Goldfield Consolidated mill, in
accordance with an understanding
reached at the time of the purchase
by the former from the Goldfield
Merger Mines company of its Velvet
claim.
Manager Burch of the Consolidat-
ed and Vice President Sprague and
Manager Turner of the Jumbo Ex-
tion to the preliminary details in
connection with the change in the
place of the treatment of the output
Of the mine. 1t is stated that tests
made have proven that the Consoli
dated mill can make an extraction
of better than seventy-five per cent
on Jumbo Extension ore. However,
that is not the only. consideration to
be borne in mind by the Jumbo Ex-
tension management. The leased
mill at Bonnie Clare is making al
most as good saving of values as
can be made at the Consolidated mill,
but the management of the Jumbo
Extension has concluded that IL 1t
continues to ship to the former plant
it will be necessary to install two
more concentrating taD1es. The mill
ing costs at the Bonnie Glare plant
are now averaging 1915 ton, while
the Consolidated is to treat the Jum-
bo Extension ore for SO ton.
During the last week there has
been continuance of the excellent
conditions that have prevailed for
some time past in the workings of
the Jumbo Extension mine, as is evi-
denced by the fact that the output re-
mains normal. The mine Is sending
daily to the Bonnie Glare mill 80
tons of mill ore, in addition TO ship
ping weekly two 50-tOn carloads of
higher grade ore or smelter ore to
the Millers' plant of the Western Ore
Purchasing company.
1t is the intention of the manage
ment to resume on June l work in
the face of the east drift into the
Velvet claim from the 921-foot level
workings of the Poleverda claim. OPP
erations in this drift, which is $50
! feet of the line of the POleverda
claim, were suspended about ten days
ago when a raise was started at a
point about thirty feet from the face.
This start is now up sixty-five feet
and is exposing six feet Of ore that
averages $14.94 ton. 1t will be
continued up an additional distance
of forty feet, in order that connection
may later be made with it by the
northeast drift on the S5O-foot inter-
mediate level of the Poleverda work
ings. A north crOsscut into the shale
fOotwall of the vein, recently started
in the 921-fOOt east drift into the
Velvet about forty feet from the Pol
everda line. was advanced distance
of twenty feet and raise of five feet
from the face has revealed the ore
body, which lays very flat. dipping
to the southeast on an angle of thir-
ty degrees from the horizontal. In
this raise there are exposed three feet
of $40 ore, upon which stopping oper-
atiOns have been started.
A stope to the eastward has been
started from the top of the forty-foot
raise above the northeast drift into
the Velvet claim about thirty feet
from the Poleverda claim. The stope
is exposing two and half feet of
ore that averages better than $24 a
ton. Ten feet of ore. assaying $12
ton, is being broken down between
the walls of the vein in the south
drift from the top of the 97-foot
raise above the east crOsscut from
the main southeast crOsscut on the.
I 01 7-fOOt level