The Wallace miner. [volume] (Wallace, Idaho) 1907-current, 1920-09-09
MAY ADD IMPORTANT PRODUCT
TO lDAHo'S VARIED MINER
AL RESOURCES.

4 recent letter from George T.
White, one of the early day residents
of Wallace now residing at HOLSTER
in Twin Falls county mentions the
discovery of tin ore that is attracting
much attention in that section. He
gives no details regarding the dis
covery except that an analysis of the
ore by the Idaho school of mines at
Moscow gave it a value of SPA per
ton. The character of the ore is not
given, but it is possibly cassiterite
an oxide which when pure contains 70
per cent tin and from which. accord
ing to the United States geological
survey practically all tin is obtained.
From Mr. Whites description, the To-
cation of the discovery is about 10 or
u miles southeast of HOLSTER, in
Twin Falls county. Nothing is known
regarding the probable extent of the
deposit but the mere discovery of tin
ore of the value stated is sufficient to
justify thorough prospecting Ac-
cording to the latest available gov
eminent report. Mineral Resources
1916" tin consumed in the United
States amounted to 92,O19 tons, and
of this amount only 14O tons was of
domestic origin, coming almost who'll
ly from Alaska. With this showing
of large consumption and almost
negligible domestic production. it is
easy to grasp the value of a CONNER
cial tin deposit in this country.
Tin in Nevada.
In connection with this discovery of
tin in Idaho not far from the Nevada
line, the following taken from Min
eral Resources of the United States"
for the year 1916, compiled by the
United States geological survey, re-
garding tin in Nevada is of special
interest:
Tin has recently been discovered
in northern Lander county, Nevada,
both in lodes and in the alluvium
thanking the ranges in which the lodes
occur. The tin-bearing mineral is ex-
the peculiar variety of the
oxide known as wood tin, and in its
bedrock source it occurs in narrow
veinlets and low grade stringer lodes
cutting a series of rhyolite flows of
middle Tertiary age. The associated
are specular hematte. chal-
lusatite, tridymite and opal.
Deposits of this type differ greatly
from all other kinds of tin-bearing
veins, which are invariably associated
with intrusive granite and occur in
the granite itself or in the adjacent
rocks surrounding the granite. The
of the Nevadan to the /
tin veins, which have never /
yielded largely or steadily, creates a |
against the Nevada veins /
but this resemblance, although it
should warn against exaggerated
hopes, should not be allowed to pre-
vent thorough and systematic pros
)ecting.
1.-THE known tin-bearing belt is
small fraction of the great area Of
500 square miles or more underlain
~ rhyolites similar to those associ-
ted with the tin ore in Lander cOun-
" This rhyolite area extends at
east as far north as the Nevada-Ida-
10 state line. Clearly it is a region
nat merits luIlutI dlltullOh Aioii
he prospector for both its lode and
lacer possibilities, especially such
arts of the region as have been but
uperfcially examined because barren :
f deposits of precious metals"
A. S. G r. Tin Smelter.
The American Smelling & Refining C
ompany has tin smelling plant at no
erth Amboy, n. j., which began op- v
rations in 1916 having been built S
specially to treat the tin ores from q
olivia, which next to the Malay q
tates, is the largest producer Of tin. {
f the worlds production of tin in a
JIG, about "A per cent came from {
ldes and 76 per cent came from pla- a
srs. Most of the tin derived from C
de mining comes from Bolivia, n
ornwan South Africa, and Australia, la
lille the placer production comes V
ON the Malay States, and the Dutch
lands of Banca and Billion. The
laska production was obtained
,ro,toh plaoar Qnara fionq /,