The Stark County Democrat. [volume] (Canton, Ohio) 1833-1912, 1881-12-15

Il ACou AACO OIOo arc ouCle NtiACAAp
on being stamped, yield their total silver
and gold to the mercury, without any
previous metalluTgical treatment, as.
for instance, roasting; dry ores are ores
with little or no lead, which are either
smelted with rich lead ores, are stamped
and amalgamated after roasting. The
only two free melting ores are native
silver and gold, and chloride of silvers
| all the others must undergo smelling or
roasting previous to amalgamatiOn.
Free milling ores can be treated at n
cost of $1.50 to SO per ton, while the ex-
| penses for treatment of the two other
classes of ore amount to from SIS to $25-
1t may be in place to mention that
the fissuTe veins of the Rocky Mountains
are confined to an attitude of 10000 feet
and above; they hardly ever amount to
much if lower down. To illustrate these
| points fully, l will try to describe q
| number of mines and prospects: ~
Clinton Mine-Altitude 1850 feetS
width between granite walls, four feetS
lead matter, quartz, mineral, argenti-
| ferrous galena. In this case the galena
forms solid streaks, one of four and the
other of six inches in width, while the
| quartZOse lead matter between is almost
| barren. The galena assays on an aver
age, lead, 72 per cent; silver, Al ounces
per ton of 1900 pounds; gold, none.
, Lulu Mine-Altitude, 1900 feets
| w luBu utIW ttu Walls, blA lt6b6
| lead matter, quartz; mineral, iron
pyrites. Two very distinct formations
| of iron pyTites occur in this mine; a
perfectly solid streak of eight inches
width, consisting of pure solid pyrites
| GrOn and sulphur) They are of yellow
color and fragments of this ore look
like broken pieces from brass casting.
1t assays II ounces of silver to- the ton
Right below this streak and separated
by a small layer Of quartz is another
streak of pyrites, not solid like the for
mer, but disseminated through the
quartz and only one inch in thickness.
Assays taken from this portion gave as
high as 145 ounces of silver per ton Of
| 1900 pounds.
Germania Mine-Altitude, IL, 200 feet;
width between walls, five feet; mineral
streak also termed pay streak, six inches.
The ore of this mine consists of quartz,
through which fine crystals of pyrites
and silyeTglance together with some
native silver ore distributed. Assay,
silver, 1872 ounces per ton; gold, one and
| One-fOurth ounces per ton.
Madison Mine-Altitude, 10,8OO feets
width of vein, six feet between granite
walls; lead matter talcOse, thickly i'm
pregnated with iron pyrites of beauti-
full cubical form, and penetrated by solid
streaks of argentifeTOus grey copper.
AntimOny, sulphur, copper and silver Of
W
silver, 517 ounces per ton of 1900 pounds;
gold, two and half ounces per ton of
1000 pounds.
CalIium Hill Mine-Altitude, 10000
feet; width of vein between granite
walls, eight feet; lead matter, quartz
densely impregnated with iron pyrites
and separated by three solid StTeaks of
galena of two or three inches thickness.
This galena is highly argentiferOus and
assays lead 72 per cent; silver, 80 ounces
per ton of 1000 pounds; gold, one and
One-fOurth ounces per ton OF 1000
pounds.
1t is an erroneous idea among miners
that fine grain galena contains more
silver than the coarse cube variety. The
physical structure has nothing what
ever to do with the contents of silver.
The best developed property in this
vicinity are undoubtedly the Murphy
mines, owned by a large st. Louis COM
pany; altitude, 1880 feet. Three tunnels
of several hundred feet depth have been
driven, and from 80 to 40 tons of ore are
daily shipped to the smelters. Several
veins of quartz and felspar heavily
= laden with mineral, and of great width,
, have been cut. The pTedOminating
minerals are copper pyrites, azurite and
. malachite, manganese, galena, anglesite
1 zincblende and silverglance, together
: with lead and zinc caTbOnates. The
Z lower grades $50 to $50. 1t would too
extensively lengthen this article, should
! l try to give complete list of all the
4 mines and prospects l visited in this
U mining camp, they numbering over one
: thousand; and | therefore shall try to
9 devote some time to the most important
T and flOurishing mining camps across
; the range, where we will meet with en-
) tiTely new and different geological fea-
= lures.
9 While the eastern slope of the cOnti-
4 mental divide exposes the naked granite
to the eye, the western slope (Gunnison
: county, is heavily 'capped" with the
: rocks of the lower Silurian formation
q There, on the contact of the metamOr-
: phic rocks, with those of the Siluriani
: we find large deposits of valuable min
$ eral. The nature of these deposits, their
A formation and characteristic minerals,
y will now occupy our attention.
I Parallel to the range on the western
a slope lies Goldhill, with Virginia City
g at its northern and Pitkin at the south
A ern extremity. The mineral Occurren-
9 ces of this section are deposits, under
|: laid by pOrphiry and underlaid by grey
u limestone, forming thick, nearly hOri-
L ZOntal layers between the two rocks
$ The predOminating minerals of this
8 camp are galena, lead carbOnates and
> malachite, variOusly intermiXed with
1 instance the lineup, GOldcup and Jim
9 my Mac mines assaying extremely high
q between 5000 and $1,000 to the ton
u Further south we find the highly argen'
9 tiferOus galenas of the TOmichi district
y and further west the lead carbonate de-
u pOsits of Springcreek and the free mill
7. ing ores of Forest hill, GunnisOn cOun-
/ ty. The formation of Springcreek is
K similar to that of Leadville, metamOr-
/ phic and silurian rocks, covered with q
8 heavy diluvial wash. A. says from the
., Doctor mine at Spring creek, where a
/ bed of caTbOnates of Is feet thickness
T has been cut, run as follows: Lead, 81
y degs.; silver, OF. per ton of 1000 pounds
II gold, none; and lead 68 degs.; silver, Il
. OF. per ton; gold, trace.
e Right opposite we find the BOstoI
J mine, with limestone walls and calcspal
q as gaugue-matter, in which a splendiC
l. galena is imbedded. Assay: Lead, g
e degs.; silver, AZ OF. per ton of ZOO
IL pounds; gold, none. Towards the south
from GunnisOn city, immense cOal-beds
IL anthracite as we'll as bituminOus, hav
g, been discovered in close proximity t
IS iron ore deposits of excellent quality il
J. country where limestone abOunds
I'll Thus all the necessary points are fulfill