The Harrison times., 1901-03-02

| carbouateS being at or near the SUR
face, while the regular sphalerite
(sulphide of zinc, jack. or zinc
blende, } is deeper seated, in assures,
| openings, or regularly disseminated
throughout the solid rock in blanket
form or in horizontal position; al
so massive. The sui phide of zinc, or
jack, in the richest state. These modes
of occurrence of the zinc ores seem to
be the same throughout all the
northern counties.
SULPHIDE OF ZINC, when a pure
ore, contains 81 parts of zinc and 33
per cent Of sulpher. A crystal. ac-
cording to Owen, from Woods
mine, showed 6653 metal. In the
Joplin district, the ore IS Claimed to
run 60 to 81 per cent metal. When
pure, it is nearly colorless, but as us
ually found it shades from a light,
straw yellow to a black-the rich
ness in metal generally grading ac-
cordingly.
CARBONATE OF ZINC ,-Smithson
when pure, is a compound of prot
oxide of zinc, 64S parts, and carbon
dioxide 35.2 parts, thus containing
so per cent of metallic zinc. 1t is not
SO rich as the sulphide, though far
more reducible and consequently
highly priced zinc ore. 1t is usually
found at, or near, the surface and as
a coating OF rocks that hold within
themselves bodies of zinc blende. Its
normal color is white, but, on ac-
count of other impurities, this varies
to yellow, brown and even blue and
green. 1t occurs in large bodies,
more especially in Lawrence, Marion
and Boone counties. There are large
quantities of Smithsonite in these
counties which, according to Owen,
yield from 48 to SO per cent of zinc
metal, while the maximum given
by Prof, Branner is more than Ga
per cent. 1t, at present is the most
abundant and accessible ore through
out Northern Arkansas, and
must, unquestionably, attract
capital at a very early day to erect
smelters and reduce this particular
ore on the ground.
| MARIoNITE,-So named by it's
discoverer, D. D. Owen, is a Hydro
zincite, and is the only known miner
al composed of Oxide of zinc, carbonic
acid and water. Known also as
| Hydro-carbonate of zinc, earthly
calamine, zinconite, and zinc bloom.
First discovered in Marion county,
but is also known to exist in con-
siderable quantity in Boone. The
constituents of the ore, according to
analysis in Owens Report, are Oxide
of zinc 1926, carbonic acid. 1900
and water, 11.S1 S1,-equivalent to
1888 parts of metallic zinc This
is the most desirable of all zinc ores
both on account of the contained
metal and the ease with which it can
be reduced. 1t likewise is a shallow
or surface ore and, similarly tC
, the Smithsonite, originated from the
the sulphide. 1t is amorphous, anG
occurs as nodules, concretionary
crusts, massive, and mammilary
Color, chalky or zinc white, with
, lustre dull to vitreous.
BRANNERITE, another new form o
zinc ore, described by Prof. Chapman
as having been found in "Coor
Hollow" contains, in parts, oxid,
of zinc, 742,-carbonic acid, 244,-
silica, 2.O-moisture, 1.4,-Prot
; oxide of iron, O.6. With the excep
; tion of the silica. water and iron, i
would be a Carbonate of Zinc
known also as calamine, Zinc Baryte
and Anhydrous carbonate of zinc
which occurs at the Perkiomen leaC
, mines, in Pennsylvania, and also a
the zinc mines at Franklin, N. J., a.
, thin incrustations upon the Frank
e Unite. This, SO far, appears TO b
, the purest Arkansas zinc carbonat
: ore.
= .CALAMINE,-a zinc silicate, is an
, other valuable ore that has bee
] found in Boone county-most abun
, dant, so far, on the Almy farm, o.
f the head-waters of Sugar Orchar
= creek. Upon more extensive pros
/ pecting and mining it may be foun
$ to considerable extent at a numbe
S of other places, since it occurs a
e "The General mine, near the hea
: OF Jimmies creek. Prof Branne
e gives the maximum metallic proper
e ties of this ore as being 54.16 pc
t cent.