The White Pine news. [volume] (Treasure City, Nev.) 1868-1906, 1902-04-10

This occurrence has been noted by
Mr.. F. B. Weeks, of the United States
Geological Survey, who visitsd the To-
cality In the autumn Of 1900. His notes
on the Occurrence Of Tungsten Ore In
Eastern Nevada" which we're publish
cd In the twenty first Annual Report Of
the Survey, were reproduced In the En- :
cheering and Mining Journal in the 10.
sue Of July 9, 1901.
During December, 1901, the writer
made careful examination of shis de-.
posit and was greatly impressed by the
quantity OF this ore on the claims COM
prising the present group. II 10 his be-
lief that the occurrence is worthy Of .
more detailed description. Compared
with other visible supplies Of tungsten
ore In the world, these mines are OF .
most extraordinary economic impor-
tance, as they are capable, apparently,
OF producing more tungsten mineral
than any other mine known, and per.
haps than all other mines combined.
HIsToRY.-The very prominent out
crops OF the veins OF white q uartz In the
brownish gray granite were noticed BY
the earliest prospectors, and the black
mineral therein examined. The writer
Is informed that as early as 1885 samples
OF this mineral were sent to the chemist
OF prominent reduction works In CAL
ifornia, who reported same to be "spec-
ular hematite, thus confirming the
prevalent misconception Of the mineral.
In 1899 more observing prospectors,
refusing to accept the mineral as one Of
iron, sent samples to Denver for ap.
alysis, with the result of learning the
true character OF the same and OF It's
value as a source OF tungstio acid. Il 10
probable that from this analysis the
prevalent idea was obtained that the
mineral Is hubnerite and not wolfram
ite. The writer has never made COM
plete analysis OF 1t and IL not aware OF
any such from an authoritive source.
Messrs. c. w. Gaby and w. Buntin
located on the more prominent veins
In 1889 and have since made several
small shipments of hand cobbed ore
which was taken from the outoroppings
OF the richest parts OF the veins. In
the summer OF 1900 small hand made
Jig and canvas table were erected and
operated by horse power. Later
gasoline engine was used for motive
power, but the equipment was not
adapted to the concentration Of the
mineral either from the economic or the
metallurg ical standpoint.
A shipment Of about 10 tons Of con-
centrates, which carried from 65 to 10
per cent WOs was made In 1900. The
owners then sold their claims TO Mr.. J.
Il, Marriott Of osceola, New, who had
previously located the surrounding
claims which showed any veins Of
the mineral. The present owner
drove tunnel for distance Of aoe seet
on one Of the stronger veins. The ore
taken from this drift Was lsft op the
dump and shows plainly the character
OF the vein filing.
GEoLoGY.-The veins are In the foot
hills apd lowest slope Of tho Snake
Mountains. For distance Of several
thousand feet up the side Of the noun
tain and for an elevation OF about I,6 500
feet the formation Is granite, which is
overlain by Cambrian Qusrtzite. The
latter rock forms the main ridge OF the
mountains to the top OF Mount Whesler
or OF Davis Peak, which is directly
above the deposits in question. The
veins, OF which there are Ave promi-
nent ones, all occur In the granite and
plainly cut across the bedding Of the
granite, which Is very indistinctly
marked. They have been traced to
the contact OF the two rocks. though
none has yet been found In the quartz
ite, The general strike OF the veins 10
mort heast-sopthwes and the dip TO the
Only one is developed, and
8 the directions are determined from
the groupings only, there Is necessarily
much uncertainty regarding the par
allel character, or whether some OF the
veins viii ultimstely run together.
In many cases the groupings are worry
for instance, on the huber,
mite, whore the vein can be traced ip
one continuous line for distance Of 900
feet. Talus has covered the veins In
many places, but they are discernib 10
for total distance Of 800 feet, either
as one vein or as parts OF sever al, up
tho mountain side which has general
slope Of about 1s'.
The hubnerite vein, as shown In th o
tunnel, has strike OF N. 70' e. and a
dip OF So N. W. The walls are we'll de-
fined and part easily from the vein, being
separated on the foot by layer OF clay.
The width varies from IS to SO nches
and averages 20 inches throughout the
entire length OF the tunnel.
On the surface tho vein shows greater
width In places, and In some 1t Is mar
rowed to 8 inches. Largo boulders Of
quartz not properly In place, which
from their proximity 10 the vein show
their connection with II, are scattered
along the slopes below the vein.