103 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 58 



ITALY (Continued) 



621. D'AcHiARDi, Antonio. Entdeckung des Ziiinsteins in Campiglia Marit- 



tima. 



Neues Jahrb. Min., 1876, Stuttgart, p. 285. 



Digest: Geol. Rec. for 1876, London, p. 222. 



" Notes on the dircovery of cassiterite, with brown iron ore, in the Cento Camer- 

 elle, where the Romans and perhaps the Etruscans, had important mines. The tin- 

 stone contains 72.45 per cent tin." 



. See No. 1313. 



622. Dalmer, Karl. Zinnerzlagerstatten. 



Zeitschr. prakt. GeoL 1894, Uerlin, p. 100. 



Additions made to a communication by Herr Gurlt concerning the occurrence of tin 

 in Campiglia. 



623. Ernst, C. von. Die Montanindustrie Italiens. 



Oest. Zeitschr. Berg. Hutt., Vol. 31, 1883, Wien, p. 597. 



Brief account of localities, and manner of occurrence of tin in Italy, also production 

 from 1876 to 1880 inclusive. 



Fawns, Sydney, See No. 1320. 



FucHS, E., and Launay, L. de. Sec No. 1323. 



624. Gurlt, A. Zinn-Vorkommen im Kalkstein von Cava del Fumacchio bei 



Campiglia, Toscana. 



Zeitschr. prakt. Gcol. 1894, Berlin, pp. 324-.326. 

 Remarks on this article by Karl Dalmer, p. 400. 



625. Herter, Paul, and Rath, G. vox. Zinnstein von Campiglia. 



Zeitschr. deutsch. gcol. Gcs., Vol. 29, 1877, Berlin, pp. 194-196. 



626. Langer, J. H. Zinnsteinvorkommen in Toscana. 



Oest. Zeitschr. Berg. Hutt., Vol. 24, 1876, Wien, p. 502. 



627. Lotti, B. Sulla genesi dei giacimenti metalliferi di Campiglia Marit- 



timi in Toscana. 



Bol. R. Com. geol. Italia, Vol. 31, 1900, Rome, pp. 327-337, sections 2. 



Digest Trans.: Trans. Inst. Mg. Eng., Vol. 22, 1901-1902, London and Newcastle-upon- 

 Tyne, pp. 704-745. 



Quartz-trachytes, some of them bearing tourmaline, and tourmaline-granite cut gray 

 and white limestones of lower Liassic. Metalliferous deposits in more direct contact 

 with trachyte than with granite. At Canipo Alle Buche at the contact of the granite 

 and gray limestone are masses of hematite, limonite, carbonate of lead and traces of 

 cassiterite. At Mor.te Valerio are notable deposits of tin with the iron ore in the 

 white Lower Lias limestone. At the Cento Camerelle tin and iron ores occur in the 

 red Middle Lias limestone and continue into Lower Lias. Are in a horizontal vein 

 with tin ore in lower part of ore-body. Trachyte changes to pjToxenite with epidote 

 and garnet in contact with limestone country-rock. Ore deposits same age as intru- 

 sives, post-Eocene, not later than upper Miocene. The sulphides are probably the 

 outcome of infiltration of siliceous metalliferous solutions, possibly (after Vogt and De 

 Launay) from magmatic segregation. Iron and cassiterite come from oxidation of 

 sulphides. Cassiterite probably ranied from granite b.v alkaline carbonate solutions 

 with carbonate of iron Vhich was later decomposed into oxide. 



628. Phillips, J. A., and Louis, Henry. A treatise on ore deposits. 



1896, London, pp. 476-477. 



In Italy tin was found in connection with hematite, near Campiglia Marittinia, in 

 1875. In Lower Lias limestone in fissures in connection with hematite. 70 tonnes of 

 ore produced up to 1894, but none during that year. 



