The Anaconda standard. [volume] (Anaconda, Mont.) 1889-1970, 1899-09-28

that the dragged ore you testified to
could not be formed in any other way
than by the agencies that operated at
the time of the faulting?" asked Mr..
Hughes.
Eyes, SIR" said the witness.
He could not say what sample Of
fered in evidence by the witness, Mr..
Bulky, was. without knowing where
it came from
Then the mere composition Of the
material itself, without seeing where
the sample came from, would not en-
able you to determine its character"
said Mr.. Hughes.
II would not undertake to pass on
the sample" answered the witness.
The witness was handed a sample Of
rock and asked If 1t was the sort Of
material that is found at the place
the porphyry sample of Mr.. Tower
came from. He said he could not tell.
He did not think it was porphyry, but
quartz. There was crystal in 1t, but
he did not think 1t was quartz crys-
tai, because the cystal was not the
right shape.
A long discourse between the wit
ness and Mr.. Hughes on the subject
of quartz and quartz-porphyry. relat-
ing to the geological elements of the
rocks, followed this.
The witness testified as to another
sample, that he did not think 1t was
porphyry, but that it might once have
been porphyry.
Suppose the two samples gave you
came from the main porphyry dyke
in the south crosscut, on the 900 level,
what would you say?" asked Mr..
Hughes.
Il should say that I have seen that
dyke, and the material of it is hard.
This is not the same, / should say
said the witness.
State whether this material is not
there in quantity, both hard and soft"
7 won't say it is not present. But
I did not see 1t. l would not say this
is not from the dyke"
will you say that porphyry is not
found in this condition.
mo"
would 1t destroy Its intrusive char
acter to find it in the softer condition
of these pieces?"
mo; would not say it would"
IF it occurs on the 900 level, could
it not occur elsewhere"
Yes
The witness expressed the opinion
that there are agencies near the sur
face that tend to decompose porphyry,
and that the complete decomposition of
porphyry would not change the fact
that it had been originally intrusive.
Other samples We're shown the wit
ness, and he said he could not tell
what they were.
He said that secondary deposition
may have taken place in the contro-
verted ground, but that he had not
seen it in this mine.
He had not found any ore in the
mine that by its texture, seemed to
be redeposited ore. Some black ma
terial was shown him and he was asked
if it was not that kind of ore. He
could not say anything about it, he
said.
Il think have seen black material
like that in the fault on the 210 level"
he said
Have you not seen some black
streaks running through the clay?'
asked Mr.. Hughes.
No" said the witness.
Some dragged material from the
faults, with black matter in streaks in
it, was shown the witness, and he said
that the black substance might be en-
argite broken from vein and mixed
with the other rock. If this were the
case it would be another proof to him
that the material in the fault crevices
is dragged ore. d
Asked if the dragged ore might not
have been mineralized after the drag
ging he said that he. had seen moth