Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1908-01-01
Something About Interesting Geo.
logical Conditions Found
In Eastern Utah.
ORES TREATED BY TEACHING.
Correspondent Tells About Various
Properties Undergoing De-
veIopmcnt.


point, says a correspondent of the Min
ing World. This district is reached
from Thompson's Springs, Utah. on the
Denver & Rio Grande railroad by way
of Moab, about SO miles by stage. o.
from Placerville, Colo, on the Rio
| C;rande Western railroad. about the
same distance.
These deposits we're discovered as
early as 1882 and specimens of native
copper. brought to Leadville from what
is now known as the Big Indian prop
! erty by an old prospector with his pack
| train. The various properties have
| continued to change hands with wary
| ing success until now when several
| strong companies have undertaken
| their development.
The Casnln mine. situated about 40
miles northwest of Flacerville. Colo,
mas been commented upon by >. l..
Emmons in bulletin No, go of the u.
: geological survey. He states tndt
the product from this mine to date
of copper which averaged l25 pes
cent and of silver which averaged lo4
ozs. per ton, has been 2,067 tons Some
shipments have been made giving re
ton. Another shipment goes 50 per cent
conner and II ozs. silver per ton. Inc
silver values run irregularly IN inc
various forms of copper Masses OF ma
tive copper occur in the kaolin IN the
50O-foot level. One block of native cop
per was found which weighed BOO
pounds.
CHARACTER OF ORE.
The various metallic minerals are
cbalcocite. bornite. native copper NAL
achite and azurite. Beautiful crystal
of these minerals are found at Vari-
Gus times either forming or ALREADY
formed on the walls OF the mine work
ings. .,,o, >.
\ arious processes have been tried to
treat the ore from this mine. The Rus
sell teaching process was once used TO
extract the silver by means OF a weak
solution OF hyposulphite of soda. rms
process extracted SO per cent or the
silver value. but was too expensive
for copper extraction. Thirty-one hun
dred tons OF ore, averaging 80 per
cent conner and 2s o2s. silver, were
treated by this process at the mine. y
small smelter was also erected lorIl
for flux in the form of pyrites being
shipped from Ophir, Colo. Coke for fuei
came from ovens % miles east OF IN
smelter. The copper matte carried hlsh
silver values.
The next largest property in this sec
ton Is the Big Indian, 35 miles south
east of Moab. There have been several
raports made on this property, all raw
orable as regards the ore in reserve
The question IL how to treat the ore
economically The Big Indian properly
is being financed by w. ID. Bonn ana
others OF salt Lake City and New
York. The property is being paid Tor
nrice is about 5000 900 for the properly
alone. the plant that should be installed
viii cost nearly 100000. This property
Is being managed by B. w. Todd VINO
has had considerable experience In cop
per mining In Montana.
Another property of value IS owned
nv the IAsbon Valley Copper company,
situated in A narrow valley of thu same
name. some 10 miles southeast of the
RIr indian mine The Lisbon Valley
property has recently been taken over
| by Denver people. who are enersetically
developing IT, There are two distinct
| beds of copper carbonate on TINS prop
| erty. each % feet thick dipping at
about IS degrees. An inclined shaft
has been sunk nearly 100 feet on one
of these beds Samples taken across
| an 1S inch streak OF ore average III
| per cent copper; the remainder OF the
| bed averages per cent. The TWO beds
are parallel and are exposed FOR l,3uU
| feet along the surface with groupings
| 1850 feet They strike east and vest
| Minerals found are principally chal-
| cocite. azurite, malachlte, and bornito,
| So far silver values have been scarce
| Underneath the tor bed ~ the I'M
| pregnated sandstone is an S-inch layer
| OF Ignite coal.
| Twenty-six samples taken from the
| Lisbon Valley property gave an aver
1 q NaHlN Ia Ct VaH q
| varying from rs inches TO feet, which
! assayed as high MS 1878 per cent copper,
| One engineer estimates the present ore
| I'm reserve 10 be 100000 tons OF 3,05 per
| cent copper. This property Is under the
| management OF j. NJ. Price. The metal
lurRcal part Is being worked out by H.
| Il Blake, who has had considerable OK
pcrience with carbonate ores In New
PARADOX VALLEY
In Paradox valley company IS ope-
rating the Pyramid property. FIFTY
thousand dollars have baen spent In
| building leacliln8 plant which has
two crushers, two rolls, two wooden
barrels fact In diameter and 10 feet
| long, lined with lead for the ore that Ia
| mixed with a solution of sulphuric acid,
After mixing for about an hour the 500
| luton Is run off 90 precipitating tanks
] through illLolH Wnlfn lfluhN' tue adNA.
| The precipitatnG tanks are about 10
feet deep and 30 feet in diameter; they
| contain iron scrap upon which the cop
per Is procpitated. During prccipitn
| tlon the solution IN heated b" u qicnm
pine. The sulphulic rrid is brought "a
miles distant Ia iron casks. hence the
expense OF extraction must he greater
Than the production OF copper war
rants,
Another property, some 10 miles south
~ The Pyramid. has been opened by
Grand Junction people who are eXcl-
waiting FOR 50-ton furnace which viii
be i2 Inches IN diameter. Frank Bretz
an experienced furnace man. n super.
intending this work, and states that Tho
ore win smolt readily This property Il
developed by one shaft $40 feet deer
and two tunnels each l07 feet and n
feet A sample from ledge 10 fee
wide gave wet assay OF rs per pei
cent copper
The Sunrise property IA Paradox val
ley rs being worked by j. w Galloway
Here the vein rs almost vertical with {
strike northeast 10 southwest. The vein
about feet wide Is in lime and sand
stone. a carload Of ore gave silver. o.
ounces ana copper 3J.l2 per cont. m,
net returns being a little over 81 900
THIS ore was hauled 70 miles TO Placer
yllla, and then shipped 20 the Boston 4
| Colorado amelter al Denver