The diamond drill. (Crystal Falls, Iron County, Mich.) 1887-1996, 1891-07-25

Capt. G. II. Roberts has dis
covered and is working deposit
of manganese near the Mastodon
mine. Deposits of manganese
are of frequent occurrence in
this section, but this is the only
instance. with one exception,
where il was found in quantity
enough TO pay working it seper-
ate from the iron ore which
accompanies it. The Roberts
find was an out crop; the length
or breadth is not known, but the
depth is from six inches TO three
feet, under which lies from four
TO six feet of bog ore, then thirty
feet of sand lying on the ledge,
which is jasper and lean ore.
About 1000 tons of manganese
is in stockpile and the find bids
fair TO add many thousand tons
before it exhausts. Supt. h. p.
Jennings and j. Kellerschon
have made five analyses of the
ore up to date, the best return
being as follows: Iron, one-half
of one per cent; PHOSPHORUS,
trace; silica, 800; manganese,
6l.50. The lowest return is:
Iron. II .46; PHOSPHORUS; .064.
silica, 80; manganese. 29.S1,
while the remaining three give
the percentage OF manganese at
81. 30. 50S4 and 1880. This
will safely strike an average of
forty per cent. of manganese.
which at the present market
price brings thirty four cents
per unit of manganese and ten
cents per unit OF iron or about
$500 per ton. There are but
two firms in the United States
known to MIR. Roberts that
handle this class of mineral. be
ing the Carnegie Iron Works and
the Illionois Iron Il Steel Com
pany, with which he is in CORES
pondence and will probably
make sale. II. G.. Clark has
also located a deposit of the
valuable mineral, the extent of
which is unknown TO him at this
writing; assays have been made
and are satisfactory. The
Roberts find has started others
ON the hunt and manganese min
ing bids fair TO hold prominent
place in the industries of the
great Crystal Falls iron district
A new find is reported at the
Mansfield. Monday while the
dam in the Michigamme river was
down and the water very low at
point near the mine, fine out
cropping of ore was found in the
bed of the river, which has con
tinuous length of between three
and four hundred feet. The ore
is almost identical with the pro
duct of the mine and assays with
in the Bessemer limit. The dia-
mond drill at work ON the prop
erty about midway between the
old Caledonia workings and the
Mansfield shaft is set back from
the river about one hundred feet
and now has hole in nearly one
hundred feet. still showing the
diorite; little of importance is
expected before the hole reaches
q depth OF from $50 to 200 feet.
The formation in this locality is
OF q very curious nature, but
gives evidence Of bearing an in
exhaustible body of ore. Supt
Calhoun is of the opinion that the
Mansfield mine has made no
showing rs yet TO what il will in
a year or SO.
Crystal Falls range is rather
young 10 have produced n mine
whose daily output is 1000 tons
and could be increased to 1,500
tons could the cars be obtained
in which to ship it. These fig
ures do not speak of dull times
i'm the ore business. L. 5. Demo
crat The architect of the mining
department of that paper should
visit the Crystal Falls district, for
the good il would do him ard the
readers of that excellent journal.
A visit will acquaint him with the
fact that the Crystal Falls district
contains several mines capable
Of a daily output of 1000 or more
tons Of iron ore, and that the
Dunn mine will make 1.S00 tons
its daily shipment throughout
the remainder of the season pro-
vided cars can be had. The