Eagle River review. [volume] (Eagle River, Wis.) 1890-1927, 1915-08-13

called rafaeite At Talcuna, in the province
of Coquimbo in Chilli vanadium is found
yellow earth in connection with copper ore.
The principal and almost the only commercial
source of supply of vanadium at present is from
Peru.
There numbers of asphaltite deposits in
Peru, among the best known of which are those
of Yauli. When burned, the ash from these de-
posts yields "a to 40 per cent vanadium oxide
Other mines are located at Matucan and Casapal-
ca, the Central railroad of Peru near Callao,
at Huari, and at Huancayo, but the greatest of
all deposits, as now known and worked, are at
Minas Ragra.
The Ragra mines are about fifty miles from
the celebrated Cerro de Pasco copper mines and
are in the same mining district Minas Ragra
had been frequently denounced and again aban-
doned as coal mines. The fuel of SO poor
a quality to be hardly worth the mining.
Some years ago on the abandonment by G. Weiss
& Co. of Lima, Senior Eulogio e. Fernandini. who
was engaged in mining at Cerro de Pasco and
who owned the QuisQue hacienda, about six
miles from Minas Ragra, denounced the mines
anew. Senior Fernandini had process for
making coke in which he proposed to the
output Of Minas Ragra. Senior Antenor RHO
Patron was the technical director of the Fernan-
DIM works, and on his attention being directed
to of black mineral which accompanied
the coal he became interested and made chem
ical analysis. He thereby discovered that it
contained vanadium in greater proportion than
any of the heretofore known ores of this metal.
The material looks like slaty COAL is very hard,
with 80 per cent or more free sulphur ii per
cent silica, 4 per cent iron sulphide, and about
III per cent each nickel and moybdenum sui
phides. and about 40 per cent vanadium suphide.
After burning out the free sulphur the ore con-
tains about 50 per cent vanadium oxide.
The distinguished Peruvian scientist, Senior
Jose J. Bravo, made very thorough examination
of the locality and published the results in a
bulletin of the Society Of Engineers The sui.
phide of vanadium, not having been Heretofore
known as a natural product, was named rizo-
patronite by Senior Bravo in honor Of the original
discoverer of the mineral This name it still
bears although ordinarily shortened to patronite.
Rizo-patronite, according to Senior Bravo. appears
in the form of compact mass dark in color
and some two meters thick tabout 6 feet
inches) and in his opinion is disseminated over
a large extent of country around Minas Ragra.
The earth surrounding the rizopatronite veins
is highly impregnated with vanadum solutions,
and in small catch basins this impregnated earth
is being extensively worked
Until the recent development of vanadium in
the steel industry it's commercial use was. more
or less confined to ink making and coloring
fabrics and leather The ink is made OF a-mix-
ture of neutral solution of ammonium vanadate,
gum water, and solution Of gallic acid This
ink is not destroyed by acids or alkalines nor
can it be bleached out with chloride The ink
however, is not very permanent. It dyeing fab
RIGS vanadium chlorides combined with analine
hydrochloride form a brilliant and permanent
black In coloTing leather / per cent solution
of neutral ammonium vanadate is used with
leather which has been tanned with nutgaIl
The first recorded use Of vanadium In steel
was IN 1886, in France, in the production OF ar.
NOR plates Tests Of theses showed that they
were much tougher and more highly resistant