19

hill the filling is almost wholly of milky quartz. The vein is about 23 feet
wide in the lower part, widening to over 12 feet where it passes over a
shoulder and under slide rock about 6,500 feet elevation; it evidently
swings decidedly towards the west in the upper part.

The parts of the main batholith which protrude through the tufts
on this property contain very little quartz and the feldspars indicate that
the rock is diorite or quartz-diorite rather than granodiorite,

The feature of this deposit is the development of considerable biotite
and of tourmaline in connexion with the mineralization.

Table of Paragenesis of the Ores from the Red Rose Property.
Fissuring, with some movement
Development of biotite, tourmaline, and milky quartz
Pyrite and arsenopyrite, latter containing safflorite
Pyrrhotite
Chaleopyrite
Marcasite, replaced by siderite and limonite
Covellite and native copper

The Red Rose vein is prospected by three adit tunnels: one at an
elevation of 5,734 feet, 160 feet in length; one at 5,456 feet, 225 feet in
length; and a third which was filled up with slide rock at the time of
examination. Besides these, a crosscut tunnel was driven from an elevation
of 5,202 feet to intersect the vein, but it was abandoned after going 400 feet
without striking ore.

The mineralization is usually on the foot-wall of the vein which
strikes north 70 degrees west (magnetic) and dips 50 degrees to the south-
west. At the main tunnel the vein is 43 feet in width and the paystreak
30 inches wide on the foot-wall. A sample across this ore gave: gold,
0-84 ounce; silver, 3-2 ounces; copper, 3-9 per cent; and across the
remaining 2 feet of siliceous gangue the values were: gold, 0-02 ounce;
silver, 1-4 ounces; copper, 2-1 per cent!. About 300 feet up the hillside
from where the above sample was taken, another sample taken from
across 18 inches gave: gold, 0-30 ounce; silver, 2-3 ounces; copper,
8 per cent.

This property is not producing, as enough shipping ore to prove
attractive as an investment for quick returns has not yet been opened up,
but it is kept in good condition and with facilities for having the ore
milled within a reasonable distance of the mine it could produce at a
profit and at the same time pay for the search for the high grade shoots.

BRIAN BORU PROPERTY. General Description. This property is
situated just south of the area described in the present report, but it
represents a type of deposit not prominent at other places on the Rocher
Déboulé mountain, since it is altogether a zinc-lead proposition.

About 7 miles up from Skeena Crossing a good trail branches from
the main Rocher Déboulé road and follows Brian Boru creek eastward
to its head, a distance of about 44 miles with a rise of 3,000 feet to the Brian
Boru properties.

The claims extend across a spur of stratified, fine-grained, and coarse
tuffs with some flows which are highly pyritized and are at this place about
one-half mile west of the contact of the granodiorite.

On the north side of the spur a vein was traced for several hundred
feet, striking north 50 degrees east with dips from 10 to 50 degrees to the
northwest. The vein averages 10 feet in width, but varies from 4 to 15
feet, splitting and rejoining. :

British Columbia Bureau of Mines, 1915.