The Wallace miner. [volume] (Wallace, Idaho) 1907-current, 1913-03-06
sAOsHONE CONTINUES
BANNER COUNTY FOR
MINERAL PRODUCTION
EVERY DIVISION OF DISTRICT
RECORDS NEW DEVELOP
MENT IN YEAR 1912.
New and Interesting Facts Contained
in Annual Report Of State Mine In
spector Bell-Not All Important Ore
Channels Have Been Found.
Continued from last week.
National Mine.

gulch between Mullan and Larson OF
the same vein and about one and one
half miles distant west of the Snow
storm mine.
This property was formerly opcrat.
ed through an adit tunnel and verti.
cal shaft 400 feet deep. starting from
the outcrop, but beyond finding pro
nounced fssure and decided fallItet
condition and some scattered ore, The
original development on this property
did not bring any results and with
the temporary failure Of the Snow
storm at the No, level presented a
rather indefinite prospect Of the fur
ther merits of this property at furthe,
depth, but largely due to the persist
ent efforts and intuitive scent for ore
displayed by Mr.. Charles Mckinnis,
the manager of the National mine, u
campaign of deep development has
been carried on for the past three
| years through a long crosscut tunnel
driven in through the mountain from
Deadman gulch. This work has been
financed by repeated assessments on
the capital stock of the company. 1t
consists of a good sized, working tun-
mel that is now 1880 feet long, and taps
1 the vein at depth of 1900 feet under
| the apex at the point of intersection.
This tunnel was driven through
some of the hardest formation ever
Experienced by tunnel work in the
Occur d'Alene district, consisting of
! tight Wallace states and st. Regis
quartzite that necessitated The use of
so per cent powder to break the face
through Some of the tougher ribs en-
countered.
The formation fault separating the
st. Regis quartzite from the more fav
orable Revett quartzite, which car
rics the copper ores of this part of
the district, was encountered in this
tunnel in close fidelity in its relation
to the assure, as shown in the old up
per workings.
Where the fault was cut in the long
lower tunnel disturbed zone in the
formal ton contains some scattering
lead and copper naturalization, but
not in commercial quantities. The
main vein was barren where pene-
trated by the crosscut and a north
east spur fracture was drifted upon
from the tunnel which intercepted the
vein short distance east of the cross
cut where it was found to be per-
feet quartz filed tlssure from one foot
to three feet wide. carrying a decided
gollgc and heavy flow Of water and
fulfilling the ideal requirements for a
perfect space filled quartz vein more
completely than any other fisSure de-
velopment ever encountered in til
4 Occur d'Alene district.
! This assure strikes nearly east and
west and has a dip Of about so de-
/ grees to the south. while the formation
! fault, which runs substantially parallel
to it, has a conformablc dip to the
south at a lower angle, not exceeding
10 degrees.
I The quartz in this vein, where en-
countered, was practically barren
with the exception of copper carbon
ate STAIN this gradually increased as
the drift was extended to the east and
commenced to yield some spots Of
rich red oxide and solid green carbon
ate mineral sprinkled with native sill
yer crystals.
When the writer visited this prop
orty in December the drift had beer
i extended about 900 feet and about SO
i feet back from the face the coarse
4 Reveit cliartzite beds on both sides
/ of the quartz vein were richly miner
allied with finely disseminated copper
/ sulphidc minerals, including chalcopy-
rite, bornitc and chalcocitc ores and
very much resembled some of the best
sulphide slopes of the Snowstorn
mine.
The quartzite beds with their steer
/ dip to the southwest. seem to strike
southeast on the south side of the
! drift, while on the north side the
structure seems to be more parable
to the fissure and dip at much less