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always accompanied by fine native gold. Some ore contains only 2 or 3
per cent of the tetradymite, but in the richest ore the bismuth mineral
constitutes up to 50 per cent of the mass. The tetradymite occurs both as
compact, steel-grey crystals ranging from a small fraction of an inch up
to 3 inches in length and as a mass of crystals in the altered rock. The
platy crystals are commonly dark due to a thin film of iridescent tarnish.
The altered rock consists of albite and quartz with calcium carbonate,
tale, and sericite. Rock alteration was followed or accompanied in many
places by introduction of vein quartz. The quartz is present both as
veins along the centre of the sheared zones and as fine veinlets or irregular
pockets in the altered rock. In an open-cut above the tramway terminal
altered tuff is replaced by coarsely crystalline quartz, from which some
excellent specimens of both tetradymite and bismuthinite (bismuth
sulphide) were collected. Fine grains of native gold were observed along
the platy cleavage in both the tetradymite and bismuthinite. Gold was
also seen in the vein quartz and in the altered rock close to small crystals
of the bismuth minerals.

The main adit at elevation 3,200 feet is driven south 27 degrees east
for 40 feet as a drift. Then it turns at right angles, extending northeast
an additional 41 feet. At 12 feet from the face a raise has been driven
up 30 feet to the surface along a sheared zone that strikes south 35 degrees
east and dips 45 degrees southwest. Considerable ore is reported to have
come from the upper part of the raise, where the shearing and alteration
widens to 6 feet. Between the raise and the face of the adit there is a
small fold in the tuffs, which are partly altered over a width of several
feet. An 18-inch channel sample taken across the central part of the
altered zone on the face of the adit assayed: gold, none. For 40 feet
from the portal the adit follows another altered zone from 1 to 2 feet in
width, which strikes south 25 degrees east and dips 20 degrees southwest.
Channel samples of the altered rock taken 4 feet from the portal and
midway between the drift and raise grave negative assays for gold.
In both cases the samples were of light brown, altered, silicified tuff, but
contained no tetradymite.

Sixty feet northwest of the main adit and 57 feet lower down the
bluff an adit is driven 43 feet along a sheared zone that strikes south
50 degrees east and dips 40 degrees southwest. The sheared zone carries
a quartz-calcite vein that ranges from 6 to 12 inches in width, but pinches
4 feet from the face. The tuff on either side of the vein is altered to a
yellowish brown colour over a width of 1 foot. The vein does not carry
any sulphides or bismuth minerals, and a 9-inch channel sample taken
across it 20 feet from the portal assayed: gold, none.

Fifty-five feet northeast of the main adit and 10 feet lower, an adit
is driven 27 feet along another sheared and altered zone in tuffs. This
zone strikes south 50 degrees east and dips 25 degrees southwest. A 22-inch
channel sample taken across it 10 feet from the portal assayed: gold, 0-005
ounce a ton.

From the floor of a quarry 75 feet southeast of the main adit and
40 feet higher, an adit has been driven 28 feet south along the upward
continuation of the zone on which the raise was driven. At the portal
the zone is 3 feet wide, but it narrows to 10 inches at the face. It strikes