The White Pine news. [volume] (Treasure City, Nev.) 1868-1906, 1901-07-25
oscBoLA's TUNGSTEN ORES.
Engineering and Mining journal
Describes the Deposits.

Engineering and Mining journal
Describes the Deposits.
The New York Engineering and
Mining Journal of July 6 contains the
following description OF the tungsten
deposits at osceola, this county, to-
gether with the history of their dis.
covery and development The article
was furnished by F. b. Weeks;
The existence Of misunderstanding
vein about II miles south of Oseeola,
Nevada, was discovered in the early
part of 1900. 1t occurs in the foothills
on the west slope of the Snake Noun
talns, and near the base of Wheeler
Peak, which is the eliminating point
of the range. The region is about 100
miles from Frisco, Utah, on the Oregon
Short Line Railway, which is the near
est railroad point. A hasty exami-
nation of this locality was made in the
course of a reconnaissance trip through
this region In August 1900. Prior to
that time small amount of ore had
been gathered from the debris OF the
surface below the outcrop of the vein,
and had been shipped in ton lots. The
mineral was also seen to be disseminated
through the loose soil of the mountain
slopes. The Tungsten Mining District
was organized in April, 1900. AT the
time of this exa mination a small gaso-
line plant with crusher and jigging ap-
paratus was being installed so that
shipment by the carload is now possible.
The vein in which the hubnerite
occurs cuts across the country rock,
which is a rather coarse porphyritic
granite OF the usual quartz ca-horn-
blende variety. This granite has
rudely bedded structure. parallel to
that of the everything Cambrian quart
ute which dip 200 to 25o S. S. w. The
strike of the vein is n. 6So E.. and the
dip is Go N w. The main vein is
normally about #. in width. In
place it pinehes to a few inches in thick
ness, but resumes its usual width with
in 80 to 40 #. Several smaller veins
from few inches to #. in thickness
we're seen to outcrop on the slopes and
could be traced to the main vein, with
which they form a sharply acute angle.
The main vein was traced for dis
lance of Zoo #. by cropping and
floats from its outcrop near the base OF
the lowest foothill up the slope OF the
mountain.
A sufficient development of the vein
had not been made at the time of the
examination to determine the extent OF
the ore deposition. A tunnel about 40
#. in length had been driven in at the
lowest outerop of the vein, and was
the only opening that had been made. |
The walls of the vein are well defined. |
Where the vein has its average thick
ness 1t is formed OF milky-white quartz
and carries large amount OF hubnerite.
Where the vein is plnched the quartz is |
schistose and the ore is in thin strings
and of small amount. The ore occurs In |
solid masses, frequently attaining a
thickness of 6 to II in. 1t is dissemlna-
ted through the vein material in thick,
plate-like forms, and also occurs erys-
tallized with the quartz crystals |
Small shoots of ore were seen penetrat-
ing the country rock for few inches
The vein material is readily crushed, |
and the mineral, on account of its
weight, Is easily separated by jigging. |
Later information stated that the |
tunnel was extended to a length of 65 |
IT. the vein widened out to 4 IT,, and |
that the mineral occurs in punches
across the full width of the vein. |
Scheelite has also been found in small |
UunUrIUs anu s5redk5 with this, Ia "a buOrib ito. |
On one locality on the vein there was
a somewhat remarkable occurrence of |
the ore. 1t was found in large punches
or blocks averaging 10 per cent. of |
tungstic acid, and from a small space Al
tons of the tungsten ore had been OBJ |
tanned. From report it was learned |
that other smaller quartz veins carry
ing wolframite had been found and
located in the immediate vicinity. The
veins are said to carry gold In very
small amount.