NO. 2 BIBLIOGILVPIIY OF TIN — IIESS 135 



NEW SOUTH WALES (Continued) 



Part 1 describes the ph.ysiography ; part 2, the general geology; part 3 treats of 

 the genesis of the ore deposits; part 4, of the petrology, and part 5 contains additional 

 notes on the ore deposits. 



Permo-carboniferous slates were intruded by granite accompanied by pegmatite, 

 eurito, niicrographie dikes and quartz veins and masses. Many of the j'ounger 

 accompanying rocks carry tin, tungsten, and bismuth minerals, moljbdenite, mona- 

 zite, gold and allied minerals. Most of the New England ore deposits are considered 

 to have been formed by magmatic segregations, in which are included those formed 

 from heated gases or waters. The ores are arranged peripherally around acid granite 

 massifs. Tlie Gulf tin deposits occur as pipes formed at the intersection of fissures 

 some of which are of very irregular form. The deposits contain arsenical pyrites, 

 tourmaline, fluorspar, beryl, monazite, bismuth, and wolframite. At Kingsgate, 

 pipes IS inches to 40 feet in diameter carry molybdenite in masses up to one ton in 

 weight, bismuth, bismuthinite, and bismuth carbonate, and at Tabletop, Timbarra, 

 pipes carry gold in sufBcient quantity to pay for working, but at neither place are 

 they tin bearing. The pipes are all formed through replacement of the granite by 

 solutions following very small cracks. At Tingha tin occurs in " a eurite vein," 

 pegmatite and pipes, with chalcedony, and quartz; in the Emerald mines at Emma- 

 ville, in quartz veins with white mica, emeralds, and fluorspar cutting carboniferous 

 (?) slates; at Giant's Den, in quartz veins with tourmaline, topaz, and chalcopyrite, 

 cutting greisen; at Pheasant Creek with wolframite, in greisen and "mica rock"; 

 in the Inverell District with abundant topaz, in greisen; at Deepwatcr with wolfram- 

 ite and iron pyrites in greisen; at Wilson's Downfall with huge quartz crystals and 

 platy wolframite in greisen and granite; at Bald Nob in Assure veins; at Siknt 

 Grove in a granular quartz vein with bismutli and galena. At Howell stannite occurs 

 in the Conrad and King Conrad reefs with argentiferous galena and sphalerite. 



798. Anonymous. The discovery of tin in New South Wales. 



Mg. Journ. Railw. Comm. Gaz., Vol. 42, 1S72, London, pp. 45, 398. 



799. . More Australian tin. 



Iron, Vol. 5, n. s. 1875, London, p. 551. 



A very brief description of some stream tin from foot of Mount Pilot, New South 

 Wales. The region is described geologically. 



800. . Tin in New South Wales. 



Min. Ind. for 190<>, Vol. 9, 1901, New York and London, pp. G3G-637. 



Brief epitome of the tin mining conditions in New South Wales. 



Tin production of State from 1872 to 1890 inclusive amounted in value to £6,390,484. 

 The lodes have scarcely been touclied. Principal lode mine is the Oetery in tlie 

 Emmaville district. 



801. . Tin in New South Wales. 



Min. Ind. for 1901, Vol. 10, 1902, New York and London, p. 639. 

 Very brief general remarks about tin deposits in New South Wales. 



802. . Tin and tin mining in New South Wales. 



Journ. Soc. Arts, Vol. 50, 1902, London, pp. 285-286. 



Brief history of tin discovery in New South Wales; localities and manner of 

 occurrence; production. 



803. . Tin in New South Wales. 



Journ. Franklin Inst., Vol. 161, 1906, Philadelphia, p. 384. 



A note. " At Tingha, Inverell district, there are fifteen or sixteen dredges working 

 for tin, all doing well. Reported that tliey have work for six to ton years ahead of 

 them." 



