NO. 2 BITBLIOGRAPIIY OF TIN — HESS 101 



ITALY (Continued) 



These stanniferous deposits differ from all others known, for they do not appear 

 to be associated with eruptives, but occur in limestone with hematite. Campiglia is 

 12% miles from Massa Marittima, 18 miles from Elba and about same distance from 

 borax-producing: localities of Larderello and Castelnuovo. Ore deposits extend in belt 

 of over 3 miles from Monte Valerio to Monte Calvi. 1% miles southwest of town are 

 tin ores, 2 miles northwest are sulphide-ores — ars;entifcrous-galena, pale and dark zinc 

 blende, pyrite and chalcopyrite. Ores intimately associated witli cordicrite-bearing 

 quartz trachyte, epidote, chlorite, ilvaite, manganiterous pyroxene, quartz, and 

 fluorspar, separated from tin-deposits by Marmi valley. These ores are eruptive and 

 nietasomatic. No tin in them. Tin deposits are on Monte Valerio and Monte Funi- 

 acchio. Counti-y-rock g'ray or pinkish marble, probably Middle Lias, overlain hy 

 variegated Upper Lias slates, with quartz nodules. No eruptives to be seen here. 

 Tin ore in limonite in fissures in slates and very irregular metasomatie masses in 

 limestone. Thinks ores are not of secondary concentration and are not a stanniferous 

 gossan. Gangue is calcite and kaolin. None of ordinary accompanying minerals of 

 tin. Copper ores of Doceheggiano and Massa Marittima are stanniferous. 



614. Bl.'Vnciiard, Fred. Sur la decouverte de la cassiterite k Campiglia 



Marittima. 



.\t(i R. Accad. Lincei (Mem.), ser. 2, Vol. 3, 1873-1876 (1876), Roma, pp. 93-94. 



615. . Sulla scoperta della cassiterite a Campiglia Marittima. 



Bol. R. Com. geol. Italia, Vol. 7, 1876, Rome, pp. 52-54. 



Digest: Geol. Rec. for 1876, London, p. 194. 



At Cento Camerelle, on west side of Monte Fumacchio, a small tin-vein occurs, 

 accompanied by limonite. Has east-westerly direction, with underlay to south. 

 Country rock is Ixiwer Lias limestone. 



616. . Sulla miniere di stagno in Campiglia. 



Atti R. Accad. Lincei (Trans.), ser. 3, Vol. 2, 1877-1878 (1878), Rome, pp. 186-191. 



617. Braun, Max. Zinnstein in Italien. 



Neues Jahrb. Min., 1877, Stuttgart, pp. 498-499. 

 A communication describing Italian tin deposits. 



Brovfn, a. Selwyn. See Nos. 1307 and 1308. 



618. Caillaux, Alf. Note sur la decouverte de mineral d'etain en Toscane. 



Bull. Soc. Geol. France, ser. .3, Vol. 4, 1875-1876 (1876), Paris, pp. 293-295. 



Geologicall}', an important discovery on account of its rather unusual occurrence. 

 Two analyses were made of this tin by Hallwa3' of London: 



O.^yde d'etain 75.18 92.40 



de fer 4.00 3.49 



Carbonate de chaux 19.64 3.34 



Plomb et bismuth traces 0.00 



Matieres indeterminees 1.18 0.77 



Total 100.00 100.00 



Etain metallique 58.90 72.00 



619. CiiARLON, E. Note sur la decouverte de I'etain oxyde en Toscane. 



Ann. Mines, ser. 7, Vol. 9, 1876, Paiis, pp. 119-122. 



620. Church, A. H. La scoperta del minerale di stagno in Italia, e sua 



relazione colla lavorazione del bronze presso gli antichi. 



Bol. R. Com. geol. Italia, Vol. 10, 1879, Rome, pp. 382-394, 545-556. 



