El Paso herald. (El Paso, Tex.) 1901-1931, 1910-08-08
SAN JOSE DISTRICT
RICH IN MINERALS
Gold and Silver Abound in
This Rich District of
OaXaca...

Down in southern Mexico on the
eastern slope of the Labrador mountain
range, % miles south of the city of
Oaxaca, is a mining district called the
San Jose. which, although but little
prOspected, has become favorably
known, both for the great size of its
numerous veins and the occurrence of
high grade values of its gold and silver
ores.
The famous Natividad del Vale mine
and the San Martin mine, both Of which
are steadily producing and shipping,
are located in this camp
Mill Equipment.
The mill equipment consists of 20
stamps 1000 pounds) and ten stamps
$3.50 pounds. making so stamps in all,
with daily capacity OF 30 tons, fol-
lowed by IL ohnson concentrators, all
run by hydro electric power. Krupp
tube mills and a cyanide plant have
been added with so tons capacity.
The ores are auriferous pyrites and
sulphides of silver and lead. The
Moore filter is working we'll and the
first products have been received in
OaXaca.
The San Martin mine has IS pertenen-
cias Of ground, is equipped with a con-
centrating plant, and is well developed.
In the same district only a short dis
Gold King mine, owned by Peter Kno-
sky and associates of Ell Paso, Tex.
Place and Elton, mining engineers of
Oaxaca, have just examined and re-
ported on the mine and made recon-
mendations for future operations. The
property consists of three claims ag-
gregating 80 pertenencias or lis acres
In ii there are severaI very important
assures occurring between walls of un-
altered andesite porphyry-
Owing 10 their great size these fis-
Sures have been refilled with broken
pieces of wall rock. The former cir
culating waters carried a solution of
gold, silver, lead, copper and iron, which
were deposited in the voids and cav
titles Of the loose vein filling forming
a network of quartz which bound the
mass together.
Gold and Silver.
In this binder the gold and silver
values are found. The soft surrounding
vein which forms the backbone of the
hills. The most prominent vein shows
237 feet wide in the tunnel. This vein |
or series of veins has a northerly and |
southerly strike.
West of this is another vein IS feet |
wide, which Is considered a freer or |
spur to the big vein. There are several |
other veins which have good gold val |
ues. Some of these smaller veins have /
yielded specimens assaying Is to 20 |
ounces gold per ton.
The mineral values are uniformly dis
seminated throughout these great veins,
and although low grade at the Surface,
they will, say the engineers, probably
enrich at 500 feet depth, as is the case |
IF other large veins in that district.
Mineralized veins, they say, of the
'ize of those in the Gold King are I'M
usual, even in the highly volcanic for
nations of southern Mexico. Expert
'nce in the San Jose camp has shown
hat the brecciation is only a surface |
of the veins, which on depth
lives way to a more solid quartz filling.
arrying commercial differentiation In |
he case Of the Gold King it will take
tut title additional gold contents to |
make the Gold King one of the biggest
,old mines in Mexico and the indica-
Ions for obtaining this with additional
epth are most favorable.