Political and commercial geology and the world's mineral resources
Science
Political and commercial geology and the world's mineral resources
Geology, Economic; Mines and mineral resources
Other occurrences in this country, most of which are of academic
interest only, are in Colorado, at St. Peter’s Dome, near Pike’s Peak;
in Idaho, in the Clearwater region and elsewhere in black sands and in
certain granitic rocks; in Sussex County, New Jersey, at the Williams
mine, where zircon occurs abundantly in magnetite; in New York at Lyon
Mountain, Clinton County; at a few places near Crown Point; abundantly
in pegmatite at Old Red Mines, Mineville, Essex County, and in numerous
places in Orange County on the south, and St Lawrence County on the
north. In North Carolina, in Burke, McDowell, and Rutherford counties,
zircon occurs in monazite sands, and also in Henderson County near
Zirconia and in Fredell County near Sterling.
Large crystals of zircon occur in a small pegmatite area in Comanche
County, Oklahoma, in the southwestern portion of the Wichita National
Forest. Oregon has many localities in which the presence of zircon has
been noted, chiefly in black sands, old and present beaches, placer
gravels, etc., and the same is true of Washington. In Virginia, zircon
is found in pegmatite in Aurelia County, and in sandstone near Ashland,
not far from Richmond.
Zircon is also found in _Norway_, the _Ural Mountains_, _Ceylon_,
_Australia_, and _British South Africa_.
POLITICAL CONTROL
The important zirconium resources of the world are controlled
politically, in the order of their commercial importance, by Brazil,
Great Britain, and the United States.
=Brazil.=--A number of years ago John Gordon, an American mining
engineer, became interested in deposits of monazite sand on the coast
of Brazil in the vicinity of Prado, Bahia. A thorough investigation
of all the known monazite deposits of the world showed that those in
Brazil were by far the most desirable, and that those in Travancore,
India, were second in commercial importance.[102]
[102] See Chapter XIII.
Other firms exporting zirconium minerals from Brazil, in addition to
Gordon & Rogers, of 141 Broadway, New York, are Suffern & Co., of
135 Broadway, New York; S. R. Scott & Co., 39 Broadway, New York;
Foote & Co., Philadelphia, Pa.; P. S. Nicholson & Co., Caixa 91, Rio
de Janeiro; E. J. Lavino & Co., Bullitt Building, Philadelphia, Pa.;
Luiz de Rezende & Co., Rua Ouidor, Rio de Janeiro, Brazil; and Chas.
Spitz, also of Rio de Janeiro, who is agent for the Société Minière, a
French company in which Rezende & Co. are said to have a considerable
interest. Sometime ago the firm of A. C. de Freitas & Co. of Hamburg,
Germany, had a contract from the Brazilian government on monazite sands
and agreed to export at least 1,200 tons annually. How much zircon that
company exported is not known. The de Freitas properties are now being
worked by the Société Minière (French).[103]
[103] Production figures 1902-1916 for the United States and Brazil
are given in Table 34.
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