The Rutland daily globe. [volume] (Rutland, Vt.) 1873-1877, 1876-09-15
Correspondence of the Denver Tribune
MINING MATTERS.

MINING MATTERS.
A Trip Through the Fastnosscs of Boulder
Points About tho Mining Camps in that
Favored Spot.
BOULDER, Sept. 5, 1876.
In examining the formation and struct-
ure of the quartz deposits west OF Boul-
der. one cannot fail to note the similarity
of the surface indications to those of the
extreme southern part of the state, in the
Alamosa and Decatur districts. For more
than year past it has been thought that
many of the Decatur miues carried tell
urum, but most of the miners were too
poor 10 do more thaa the law required, and
that accomplished, there was little left for
ANALYSING ores. Yet on Green mountain
and Blanche mountain, on the south side
of Allmota river, are found specimens OF
ore that appear to be fac stmtdos OF that
found in the leading iellurium mines of
Boulder county. Aud that the deposits of
the Decatur district have hitherto not as
sayed high grade, would again demonstrate
their likeness to the Boulder ores, as many
of the miners of the latter district acknowl-
edge that the majority of their ore, at pre-
sent, is low grade. Ia this connection they
are anxiously awaiting the forthcoming
trial of the Brett process, from which good
results are anticipated.
f,rnacaCat one end a Gre rlace fnr coal
h,,rninT tho fame from which osccnds di-
reotir ~ ronrh nm annnlar snace formed he
49,, ~, 80 orrfaca of The sr,o,ra etscl,
and ,ho outo, srrfacc of n Ten inch ,nhe of
&C. oiav Gf,oar Zoo, in hight A. the ton
Of mi, Ore ,,,tn doaactnr or can il buii,
in tha erocl, which comnels the fl ,me to
ra,nrn 70 the base If the tphe era if can ca.
cane nm The stack Bv his means the tube
10 heated r. bTi,,ht red or even white heat
A. ,he ton of tho tnhe ia n nerforated screen
throngh which is fed finely uulyerized ore.
dronning through this tube on the hearth
below. from whence it is turned over by
hand labor os in the ordinary de-sulphur-
ring furnace. across the hearth to the op.
posite end of the furnace TO the discharge.
While passing across the hearth tnc orc is
subject to the heat of a wood flame, the
Fireplace for which is located at the oppo-
site end from coal fire. By this process it
is claimed that the ore is rapidly and thor
ougniy calciheu OF ue-suiphurl@eu. FROM
the furnace tDe orc Is relnoVeu 10 i!iu-
ing i,ilii' anu iru'l .ueuoe " d le'oisins
WOODEN cyil1uer SIX icy ~ uia.neleI' witch
II Is proposal 10 me WIN lupoer ciosn, o,l
Wnich the eolu may NC causn.. hitioush
tn's ia.'cI par VI .lo PROCESS my y. Sna
eu OF mouineu. II II cialliieu INA. sliu iulf
mace as uosciipeu WIN nav u capaoiIy AZ ~
Ten IONS eacii tWen'y -ioui noWs .'nu 'ns
cost Oh puiverlns' uesu'p I a .n'N In, nuu
ainaiSauiatus' "' ~. $4,000 nv. ~ 40.
per TON Ahc entile EXPENSE ot e t nno M :.
chlneiy' iuIhac1, e.H;, 10 auou. 9I,ooo, ~ ~
Is ciaiucd tnat Wy inns PROCESS .i0 &c 10
worked 70 "ith,I hlu..y per cens, o i,i tne
assay Value. Ai'uM'nS 'lae .aose o.aiiiis
lly oe neiily lcailneu, ono , aiy rGnu ~
IMAGINE Wis., ah choIliion9 iieiu WI NC
oPeneu up loi 'n9 woiNini' az q pm "
10" gIaue ores. lour coi'csPgnuvtt 10 r'i-
ceo'ou " w. pu.Ae', ee1' W 'oa,u0i io'
many vi .iio uooNo Pai hi' ~ 10
heehtieliah eApeilenceu III iii'niIg opera
tions am, iiie.aiul s'e. as Mcli. nc 10 ~.
personally ii,'e'ee,eu III 'iiis y, any o'heI
process ioi ,no iouuoeioI ~ o,us, Dus 40 .
lilhe, ahA'ous ioi sole'il,ns, any .;i'ns VA
may lessch 'pe eApenso VI eA''"0'iis so'u'
oiiVei' e'o'' i'o'n oui oies'
THE OTHER SIDE.
AS opposed to the views of MIR. Butzel
and snmc other anxious aimirer, Mr.. Boyd
the well known smelter of Boulder, is dc
cidedly skeptical as to its success, deeminl
the claims of Mr.. Brett utterly impracti
cable. MIR, BOyQs views rs q successful
metalurgist are certainly entitled to grea
reconsideration. and vet during his early eff
fort, il was ss confidently asserted that hi,
plans were little better than utopiar
Schemes. and hence sswho shall decide wheI
doctors disagreed"
Another process for the treatment of low
grade ores now in oDeration AT Bouller. i,
that of the Pomeroy Ore ConcentratioI
Companv. NJ A. Douthett. esq. pre,ident
and general manager. This company claiml
70 Inc able TO treat n larger variety of ores
and at a less cost. than can be treated Il,
nnv other nrocess now in use. The work
at Ronlder consist of a ten-stamp mill ant
three concentrating tables. The tables al,
onerated nv neculiar reciprocatipp mo
tion. the table striking a bumper at III,
COMPLETION of each stroke, thus Jared tn,
fnest of the shines to the upper end of tn,
table. while lighter and coarser particles
gradually wash off. and are finally dis
charged at the lower end of the table. They
claim to work tellurdes to 20 or so pc