NO. 2 BIBLIOGRAPHY OF TIN — HESS 95 



GERMANY (Continued) 

 573a. SixGEWALt), J. T., jk. The Erzgebirge tin deposits. 



Eeon. Geol., Vol. 5, 1910, Lancaster, pp. 166-177, 265-272, figs. 2. (geol. maps) 

 and 1 plate. 



The till deposits are grouped around two belts of granite cutting across the 

 Erzgebirge, between Saxony ami Bohemia. Around the eastern belt are the tin 

 mines of Sadisberg, Altenberg, Zinnwald, and Graupen, and around the western 

 are those of Schneeberg, .^nnaberg, Joachinistahl, etc. 



At Sadisdorf a stockwork of veinlets has made zwitter of the granite — the feld- 

 spars having been replaced by topaz and quartz. Cassiterite, fluorspar, pyrite, arseno- 

 pyrite, chalcopyrite, chalcocite and cuprite have been impregnated in the granite. 

 An eighteen-foot quartz vein carrying fluorspar, wolframite, molybdenite, and zinn- 

 waldite cuts the granite. At Altenberg is a similar zwitter which extends down- 

 ward about 700 feet. It carries an average of about 0.3 per cent tin and 0.002 

 per cent of bismuth. At Zinnwald quartz veins 1*/^ to 2 feet thick carrying 

 cassiterite and wolframite (which is more important), with zinnwaldite, are 

 worked. At Graupen the Luxer vein, now worked, contains white quartz which 

 in places gives way to coarsely crystalline orthoclase and albite and to fluorspar. 

 Cassiterite, lithium mica, wolframite, chalcopyrite, and galena are the other 

 vein minerals. 



At Geyer zwitter bands are mined. At the Leier Mine north of Geyer a greisen 

 dike 3 feet wide, locally carrying 1 per cent tin, and tin-bearing veins are worked. 

 The ores carry nearly 30 per cent of iron and arsenic. At Sauberg, tin veins occur in 

 gneissic mica schist. No granite has been encountered. There are five groups which 

 consist of 3 to 15 parallel veins each, 1 to 3 feet apart, and from 2 to 10 inches wide. 

 They carry much arsenopyrite and some wolframite. At one place they are faulted 

 by a silver cobalt vein. 



The deposits on the Austrian side are not described. 



574. Stelzner, A. W. Beitrage zur geognostischen Kenntniss des Erzgebirges. 



Vol. 1, 1865, Freiberg, pp. 3-58. 



Abstract: Die Granite von Geyer und Ehrenfriedersdorf sowie die Zinnerzlager- 

 statten von Geyer. 

 Neues Jahrb. Min., 1865, pp. 863-866; 1866, Stuttgart, pp. 229-230. 



575. . Beitrage zur Entsteliung der Freiberger Bleierz- und der 



erzgebirgischen Zinnerzgange. 



Zeitschr. prakt. Geol., 1896, Herlin, pp. 377-112. 



Digest: Neues .Jahrb. Min., 1898, II (Min), Stuttgart, pp. 72-74. 



Thinks ore deposits due to ascending waters. No rutile present in deposits. 



Stelznes, a. W., and Schertel, A. See No. 1643. 



576. Sternberger, Karl. Die ararischen Bergbau-Unternelimungen im boh- 



mischen Erzgebirge. 



Oest. Zeitschr. Berg. Iliitt., Vol. 5, 1857, Wien, pp. 62-C3. 



577. Telkin (Vice-Consul). Tin mining in Saxony. 



Mg. Journ. Railw. Comm. Gaz., Vol. 81, 1907, London, p. 624. 

 Notes a revival of Erzgebirge mines, which flourished in 16th and 17th centuries, 

 " but began to be abandoned when the South American deposits were discovered." 



578. ViEBiG, W. Die Silber-Wismutgange von Johanngeorgenstadt im Erzge- 



birge. 



Zeitschr. prakt, Geol., Vol. 13, 1905, Berlin, pp. 95-96. 



578a. Weinsciienk, Ernst, Die Kieslagerstatte im Silberberg bei Bodenmais. 



Abh. Math. Phys. Classe Kiin. Bay. Akad. Wiss., Vol. 21, Munchen, 1901, pp. 

 349-410. 



