The New York herald., 1863-01-24

Alexander +. Osborne, the present metaliurgist
of the Bergen Point Copper smelling Establish
after separating it by magnet from It's Frank
hnite. He also reduced Franklinite in a crucble.
making iron and steel Of a superior quality.
WHAT 1T IS
tFrom Apnleton's New American Cyclopedia.1
FRANKLlNIrE mineral composed OF peroxide
OF iron, oxide of zinc and oxide OF manganese, in
appearance much like the magnetic oxide OF iron.
1t 10 found in considerable quantity only IN Sussex
county, New Jersey, although It is also mentioned
as accompanying ores Of zinc in amorphous
masses at the mines Of Altenburgh Velle Mon.
tagne,) near AK Ia Chapee. The comp position OF
the Franklinite of New Jersey is:--
Peroxide OF iron. Observation-Disclosures .6i.IIo
Oxue OF zinc.' oa.
Oxide Of manganese. ..'l.9S1
silica. .............. .....'..''''.' A'
Total. .....................,...l 100000
It's hardness IL 5.5--6.5 specific gravity, $500.
New Jersey Zinc Company, at Stirling Hill and
Mine Hill ! in Sussex county, accompanied by the
red oxide of zinc, lying between the crystalline
limestone and the gness rocks AZ Stirling Hill 1t
constitutes the main substance of two beds of con-
siderable magnitude. The upper OF these beds,
lying Immediately nnder the crystalline limestone,
is composed chiefly of the red oxide of zinc, with
the Frnnklinite interspersed in granular masses,
often assuming the appearance of imperfect crys-
tails It presents a thickness varying from three to
eight feet and is traced with great uniformity Of
Franklinite found, particularly where the bed
comes in contact with the superintendent lime
stone. These crystals are of the regular octahe-
dral form, with the edges replaced. The Franklin
ite constitutes about forty-five per cent of the
mineral contents. the rest being mainly red oxide
of zinc; the residuum, after the oxide OF zinc is
driven oil, being Franklinte, is smelted into iron.
The underlying bed appears on the surface or out
crop TO be almost pure massive Franklnite, amor
phous in structure, although occasionally also ex
hibiting very large and nearly perfect crystals OF
fbn Lran limit nfatn rod
which fact is the distinctive feature between this
and the everything bed, which 10 generally known
as the bed OF red zinc. AS the underlying bed OF
Franklinite descends 1t becomes less pure, the
Franklinite being replaced by the crystalline lime
stone, with the Franklinite and willemite (anhy
drons sicate of znc) thckly nterspersed in grains
and imperfect crystals. II preserves this charac-
ter in its entire depth as far as explored, nearly
200 feet below its outcrop. This bed is about
twelve feet in thickness, but is not worked. Seve-
raj hundred feet westwardly of these main beds,
and higher up on the HILL another bed of Franklin
ite, mixed with little red oxide and good deal
OF the silcate of zinc, is found running the entire
length Of Stirling Hill.
Attempts had been made many years since by
some Of the iron works in the neighborhoCd to
smelt the Franknite ore, which appeared in such
large masses and so easy to be mined; but none OF
these early operations proved successful, owing,
doubt TO the great quantity of zinc in the ore,
which IN its process OF vOlatiliHation absorbs a
large amount of heat and thereby tends 10 chill
the furnace. Early in 1853, Mr. +. Post, OF Stan
uopc, N. D.. UHueTtOok W WOTk Tie ore VIII
anthracite in blast furnaces at Stanhope, and
succeeded in making some pig iron Of excellent
quality, but these operations were soon discontn-
ned In the same year, MIR. C. f. DentIn0ld |
successfully and permanently established the |
manufacture Of iron from the zinc and Tranklnite
ores at the works Of the New Jersey Zinc Compa.
ny by smelling the resduum, after the zinc had
sen driven off, for the purpose Of making the
q, ~ exde. This branch Of industry is calculated
mh, snn .oBe Of much Importance, as the iron pro-
70 s',, oe from this residnnm not only yields bar
>Suarhahie pl afrpnu lint
IRON !. ~ v suited to the manufacture Of steel
~ ~ TN OroLuced is almost Identical in char.
aqter End , suctu0 with with the best
lameh.. ~ns n ia Germany. Its fracture shows
Slegen and !. E.sant ailver-whte lamellar facets,
large and brill. erystalized and SO hard as to
sometimes 6eau'fu,. are not attracted by the
magnet.