A N T I M O N Y : ITS HISTORY, CHEMISTRY, MINERALOGY ...
A N T I M O N Y : ITS HISTORY, CHEMISTRY, MINERALOGY ...
A N T I M O N Y : ITS HISTORY, CHEMISTRY, MINERALOGY ...
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THE GEOLOGICAL OCCURRENCE OK ANTIMONY ORES. 49<br />
Mountains have been followed for a distance of 3 km. (2 miles),<br />
cutting crystalline schists. According to A. Schmidt, the veins are<br />
especially rich when the country is a chloritic or graphitic schist.<br />
The principal vein-fillings are quartz, calc-spar, stibnite, stibiconite,<br />
and pyrite. The country, that is, the graphitic schists, is sometimes<br />
so impregnated with stibnite, that it may be profitably<br />
worked for a distance of 3 to 4 metres away from the walls of the<br />
veins. (A and C.)<br />
Between Arany Idka and Rosenau, in Upper Hungary, stibnite veins<br />
are found, containing quartz and carbonates, together with small<br />
amounts of jamesonite, berthierite, blende, and auriferous pyrite. (A.)<br />
At Felsobanya, along the boundary of an amphibole trachyte and<br />
of a recent one, there is found a conglomerate which contains quartz<br />
with pyrite, often realgar and stibnite, with galena, blende, etc. This<br />
is classified by De Launay under Tertiary antimony, that is, its origin<br />
is sedimentary. (E.)<br />
Antimony ores are also found at Kremnitz, Toplitzka, Schemnitz,<br />
Felsbbanya, Nagybanya, Dobschau, Gisno, Gross-Gollnitz.<br />
BOHEMIA.<br />
A typical example of antimonial gold-quartz veins, as described<br />
by Posepny, is found at Krasnahora (or Schonberg) and Milesov (or<br />
Milleschau) in Central Bohemia. Most of the veins are accompanied<br />
by dykes—mostly lamprophyre dykes, but some are of porphyry<br />
—cutting through an intrusive stock of granite intercalated between<br />
schists. The stibnite often constitutes the larger part of the filling,<br />
with a gold content of 100-133 g. ($66-$87*88) per ton. (B.)<br />
Antimony ore is also found at Hata, Brodkowic, Pribram, and<br />
Michaelsberg.<br />
SERVIA.*<br />
The Antimony Deposits of Kostainih.—The main mass of the rocks<br />
in this locality consists of light-gray to ash-gray limestones, probably<br />
of Triassic age, upon which gray and blackish soft clay slates, and in<br />
part also clastic graywacke slates, rest. These limestones and slates<br />
are cut through at many localities by biotite trachytes, and less often<br />
by hornblende andesites of trachytic habit. These eruptive rocks<br />
appear as dykes, sheets, and stocks within the strata, and also<br />
* From "Lehre von den Erzlagerstattea," von Beck: Berlin, Gebruder Borntraeger,<br />
1903; translated by Weed, "The Nature of Ore Deposits," N. F. Eng.<br />
and Min. Journ.y 1905.<br />
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