Daily inter mountain. [volume] (Butte, Mont.) 1881-1901, 1900-03-30
MORE EXPERT
TESTIMONY
Edwin e. Chase of Denver On
the Stand.
CHANGED HIS OPINIONS
Vein Formations Here and ir Coo
RADIO Differ~Cr0ss-Examin-
alton Today.
CHANGED HIS OPINIONS

IIOWtA ~. iCS "
Denver and a graduate of the Boston In
stitute of Technology followed Mr.. Rue,
ger on the witness stand yesterday after
noon in the trial of the suit of the Colu-
sa-Parrot Mining Co. against the Ana
conda Mining Co.
Mr.. Chase said he had spent 20 years
in the study of mine geology
the west and had been engaged for two
months examining the points In the
present controversy. He admitted that
when he first came to Butte from Colora-
do he was obliged to change his views
somewhat as to vein formation. In COL
orado into large veinlets que de-
yelop into large veins, but in Butte tnese
veins. were everywhere visible near the
surface, but apparently were passed py
unnoticed. moth popularity OF THIS
section was that the granite carried large
quantities of iron pyrites. He had MADE
assays on samples taken from streaks
ar %stringers and some OF them a given
as high return as 40 and SO per cent cop
per. He was of the opinion that a man
could get hig assay values anywhere
on the hill unless he attempted to take
too large a sample.
Mr.. Chase then described the SURFACE
of the ground in controversy. he De
neyed the Anaconda vein to be more UNI
formly mineralized than any vein he hao
ever seen. The Colusa-Parrot vein also
was a uniform vein, but the fault vein
had an entirely different appearance, be-
ins distinguished by being more irregu-
larly m~ineralized; a sort OF mixture OF
Roueed granite quartz and ore which ap-
peared and disappeared at Intervals. Inc
blue vein he said had a very distinct clay
facing. h miners take out ore up TO
this clay facing and then quit because be-
yond tina it carries no value, except on
the 600 level of the Anaconda where the
blue vein shows some ore.
The granite horse in the Anaconda
vein, Mr.. Chase said, was IN some places
&C feet wide. In all the crosscuts and
rkin there was nothing to indicate
a junction or union of the Anaconda and
Colusa-Parrot veins. He described the
conditions at the various levels or the
' Ana fo1,5t nat at the Al p4 3he 1, waee of the ane A xean
condo some ore, he said, was shown In
the blue vein. This ore, Mr.. Chase be-
lieved, a been dragged from the Ana
conda to the southeast from the point
where the fault broke the vein.
On the 1900 of the Anaconda where the
fault cuts the vein, the fault vein Is not
mineralized, being in fact barren. Al
the 1,4OO Mr.. Chase called attention to the
fact tina the south fork of the Anaconda
smaller and he believed that as further
depth was attained this branch would
feather out entirely leaving only the
main north vein. On this level Mr.
Chase said that the blue vein made 8
j sharp divergence to the southeast. Mr.
Chase explained in detail how the tive
veins are separated and pointed out thai
at the 1,4OO level the Anaconda vein take.
. vertical trend north of the blue vein
while the Colusa-Parrot vein depart!
with an increased angular dip to tn
southwest, the country between the TIVE
being a great mass of country rock.
The cross-examination of Mr.. Chas,
i began this morning. He said that hi
examination of the ground in ~controvers.
began in September, 1898. He was aske,
if the drifts shown on the defendant
maps turned to the northwest and he re
piled that they did as a general thing
There were a few notable exceptions
however. At the 1900 he said there wa
until the fault was reached. On the so
of the Never Sweat there vas a Sigh
turn. On the 700 it was "wavery'' up t
the blue vein. On the 900 there was
slight turn to the northwest in the Ana
conda vein but it turned in an opposit
direction again before it came in con
tact with the blu vein. The Anacond
vein, he said, was about so feet wide a
the 600 level just before it's contact wit
the blue. On the floor above that leve
he said there was a distinct clay scar
which cut off the ore.
The Anaconda vein, Mr.. Chase sale
dipped nearly vertical at a point near tn
Never Sweat shaft down to about tn
200 level n from that point down ha
a southerly dip. The three veins cam
closest together or the extreme west en-
line of the Coluha- Parrot on the 1,40t
foot level + the Never Sweat. The wit
ness was asked to u to the map of tn
!. O00-fOot level of the crosscut and sta
whether there was any showing of OF
on the second crosscut to the east. NJ,
Chase replied that his notes showed thel
We're Is feet Of ore on the west side an
40 feet on the east side. This crosscl
runs across the blue vein.
Mr.. Chase was asked several question
by Mr.. Hughes relative to his testimon
given in a former mining suit, the Oder
Nipper case, in which it was sought |