Idaho semi-weekly world. [volume] (Idaho City, Idaho Territory) 1875-1908, 1891-12-22
TIN AND rELLURlUm.

l2-- 'AANs VI liz ulOuu-
tain south Of town was assayed on
the 9th inst by Jas. Baxter & Son.
analytical chemists and assayers, of
Boise. The result was silver, lao
ounces; gold, 40 Of an ounce; total.
elO.O7 per ton; tin, 4 per cent. The
bases we're oxide Of tin and stannic
oxide. Mr.. Baxter says: 3We made
the 6.e assay for gold and silver
while testing for the tin. Our reac-
tions showed heavy trace Of telluri-
um." Those interested in that dis
triot have been making tests of the
metals Of the district and discovered
copper. tin and tsllurinm, with some
gold and silver, but not being assay
err, OF course could not determine
the value of the ores, but found out
that they carried those FIVE metals, so
. sample was sent to Mr.. Baxter, by
the WORLD, for an assay for tin.
Mr.. Baxter was kind enough to make
an analysis of the ore, also an assay
for gold and silver without extra
charge. Mr.. B. states that he made
: FIRE assay for gold and silver,
and those acquainted with the psculi-
arites of telluride ore, the tellurium
being volatile, will understand that
this process does not catch but small
per cent. of the gold and silver. The
ore was not sent for telluride assay,
and of course Mr.. Baxter did not
make special telluride assay. Ore,
however, will be sent to him for
an assay of this kind. This sam
pie was forwarded simply for tin
assay, and what information was Civ
en- outside of the assay for tin was
very kindly furnished by Mr.. Baxter,
as stated, without extra charge. The
first discovery made over there was
by E. w. Jones, of the WORLD office,
and Jas. l.. Brooks three years ago
last summer. They discovered green
copper, "copper" carbonates) which
many of the quartz experts around
this burg pronounced vegetable
STAIN" Copper in mineral country
is almost invariably an indication oi
something better. A number of 9th.
er locations were soon made, and
those who located stood the jeers anc
jibes of self-styled minerologists, who
said there was nothing on that noun
tain but "bismarks" and "lum bago.
They meant bismuth and plumbago
neither of which, however, has beer
found in the district. After little
development tellurium was discov
cred, but on the surface it is scattered
too much to pay, but it Is expected
that with little development regula
veins of this metal will be discovered
Pure telluride of the kind found ther'
generally runs "A per cent in gold
All the locations over on this noun
tain carry ore similar, to all appear
ances, to that of the location from
which the sample assayed came
None of the ores outside of the clam
mentioned have been tested by tn
owners for tin, with the exception O
the Keystone. A sample was sen
from this mine this year and the met
al was pronounced tin. Sample
have been sent from other location
to Captain Baxter to test, and it the
are found to contain tin, other sam
pies will be sent for assay. All thes
locations carry tellurium and sample
will also be sent for telluride assay
for gold and silver. The Cornwa
tin mines average two and one-ha
per cent tin. These mines have pre-
duced millions upon millions of do
lar. worth of tin. The Deadwoo'
Dakota, tin mines, which have bee
extensively developed, run five p'
cent in this metal. With four p'
cent of tin in this district it Is NJ
unreasonable to predict that it WI
! surpass even the Deadwood belt, tt
mines of which are valued at million
/, Tin has been discovered near Bol
: City, on this same belt, and we ha'
, seen many specimens OF ore carrylr
, silver, from the Halfway House d'
/, trict. that was also filled with met
that looks just like the tin ore tn
: was assayed, and being on this san
Z belt, it is undoubtedly tin. The
:. here is black, and the inexperlenc'
a would naturally pronounce it iro
!. 1t is, however, neither so hard n
It heavy as black iron. Tin ores
divided into two classes, stannite a
..A A.. l.++ar also resembii