Eureka daily sentinel. [volume] (Eureka, Nev.) 1871-1887, 1880-02-13
TYPO CONSOLIDATED.
A GREAT MINING PROPERTY.
The Exhaustive Report Of Professor
]. Z. Clayton.
WHAT He SAYS ABOUT THE VALUE OF THE
cOMPANY'S MINES.
N~inety.Ave Thousand Tons OF Ore
I'm Sight
TYPO CONSOLIDATED.
. GREAT MINING PROPERTY.

sor j. e. Clayton, on the mines OF the
Typo Consolidated Mining Company, To-
Gated at Typo, Nye county, about ninety
miles south OF Eureka. The Professor was
asked by the Directors Of the company for
his opinion Of the property, and he pro-
ceeded to make a very thorough, careful
and exhaustive report on the same. Pro-
fessor Clayton stands in the very front
rank Of mining engineers, combining both
the scientific and practical, and his reports
deservedly carry great weight with mining
men, both East and West. The Professor
is too jealous If his fair name aud reputa.
ton to record anything that is not capable
Of being verified by the facts. Hence,
when he denominates the Tybo Consolid-
ated "a great mining property" all who
know him, as we do, will at once recognize
that it is. In fact, his estimate in this re-
gard has been shared by the people Of East
ern Nevada for years. By the operations
Of the Typo Company alone, an important
town has sprung up, mail routes been open
ed, schools and churches established, and a
field created for a weekly newspaper. The
mines Of the Typo Company have been a
| good thing for the community called into
being by them. il not highly remunerative
to the owners. Professor Clayton takes
the position that a mistake was made in
attempting TO treat the ores by the smelling
process. OF this We have no doubt. Re-
course was had TO the milling process last
season, with most satisfactory results, con-
sidering the limited operations. 1t was
undertaken more in the nature Of an ex-
pertinent than anything else. Having been
found to work satisfactorily, and with
profit, it is now in order to enlarge the
milling facilities. The immense reserves
of ore in sight Of the Typo Company,
coupled with the demonstrated perma-
neney Of the vein, give to the property a
value that can hardly be ovefestimated.
The ores Of the Tybo are not Of that extra
ordinary high grade to insure fabulous for
tunes 20 their owners in a few months,
which must result quickly, if at all, in
cases OF high grade mines, as extreme
richness aud great quantity seldom go to-
gether. but as a stcady-going, reliable and
| permanent proposition-one destined to
last and to continue to produce
tive returns for a decade or more, the
property has no superior anywhere, within
our knowledge, on the coast.
TRUE FIssuRE VEINS.
Professor Clayton devotes considerable
space to a consideration of the geograph-
ical situation, physical peculiarities and
the geological formations and fea-
lures OF the district, before entering
upon the special characteristic OF the
| mines themselves. The company have
three principal mines - the Two G..
Bunker Hill and Lafayette all in an
advanced state OF development. They
also hold several undeveluped locations,
besides two furnaces. a refinery, 20-stamp
mill, water and timber rights. tramway,
boarding house, Managers residence, Of
flee, toll road, etc, ep
Professor Clayton holds hat the Two G
is a true assure vein and adds Here is a
good example OF u lode occupying a great
geological fault that must extend through
the whole series Of crystalline beds to the
source Of the plutonic rocks" Coming
from Professor Clayton this is an import
ant statement. 1t means that the mine is
practically inexhaustible - that il goes
down to as great depth rs the ingenuity Of
man can contrive to work it. The Profess
sor continues 1--WE have here the I'M
usual phenomena OF a true fissIte vein cut
ting entirely through q limestone noun
tain, and showing all the distinctive fea-
lures Of a true vein, such as true quartz
guage. and Q well defined selvage that
c~ieaves readily from the walls" The
average thickness Of the lode between the
walls is given at from three to -four feet
the extreme variations ranging from one to
twelve feet.
The Ore" says Professor Clayton. sis
associated with true quartz gauge, mixed
with iron clay, and earthly intiltratious,
from the porphry wall on one side and the
limestone and shaly wall on the other. In
that portion Of the lode above the water
level, the ore occurs as sulphate, oxide
and sulphide Of lead. associated with large
quantities Of oxide Of iron, and banded
quartz in part very spongelike or porous.
CHANGE OF OF ORE.
Below the permanent water-leyel, the
ore will be found as sulphides Of lead and
silver, and sulphides OF iron carrying q
small tenure OF gold and silver, and occa-
sional punches Of copper and zinc sulphide
Of small extent.
The general tenue Of silver and gold in
given areas OF the vein below the water
line, will no doubt be greater than in the
oxydized portion above water, owing main
ly to the fact that ~sulphate OF silver is SOL
uble in water. and gold more or less 30 in
sulphate Of iron.
1t is q well known fact that many silver
bearing lodes have been impoverished
above the water-line by the oxidation Of
the sulphides Of iron. silver and copper,
tl,.a nhavpsnU ttatn into aA1.lIz .t.Lat
The surface waters that year after
year percolste down through the lode,
would in time remove the soluble sui
pilates Of the metals, and impoverish the
lode above the permanent water line.
These surface influences are notably exem-
plifed in the Monarch and Buffalo mines
in Alturus county. Idaho, aud in Butte
City District, in Montana; also in many Of
the i~sulphureted lodes in Colorado. y y
From these considerations ! think it
safe to predict a larger tenure OF silver in
the lode below the permanent water
line than has yet been found in the oxy-
died portions above water. That is to
say, the Professor believes that the mine
will get richer as depth is attained
EXPLORATIONS N DEVELOPMENTS.
The Two G.. or Typo lode has been very
Systematically and extensively explored
above the water-line. Three levels have
been run on the lode from surface open
ings, and crosscut from the hillside. At
the base Of the hill. lao feet north Of the
level, a working shaft with two compart-
ments has been sunk to a depth of 440 feet.
from which crosscuts have been run south
to the lode. connecting with the fifth, sixth,
seventh and eighth levels. These levels have
been run each way on the lode, as shown in
the accompanying working map OF the mine,
which tells its own story better than / can