178 THE MINERALS OF NEW SOUTH WALES. 



that of Cornwall. In some parts, as at Elsmore and Newstead, 

 New England, much of it occurs in veins of greisen (niica and 

 quartz), and in eurite (felspar and quartz). At Newstead Mine, 

 and also at the Albion Tin Mine, crystals of tin-stone are seen 

 disseminated through large and well-formed transparent quartz 

 crystals. At the former place the quartz crystals in which it 

 occurs often weigh nearly a hundred weight. 



It occurs in association with molybdenite, fluor spar, a yellow 

 steatitic mineral, garnet, beryl, topaz, the matrix of the tin-stone 

 is sometimes in places composed solely of topaz ; malachite, copper 

 and iron pyrites, mispickle, tourmaline or schorl, in radiated 

 groups of crystals, and wolfram. I have not seen wolfram in the 

 same veins, but in other veins in almost juxtaposition. 



Wood tin occurs in veins at Glen Creek. 



Alluvial tin deposits. — There are two distinct sets of tin drifts, 

 an older and newer ; the former commonly occur at a lower depth, 

 they are generally much more compact and often cemented together 

 into a hard conglomerate, usually so hard as to require stamping. 

 The tinstone is also much rounded and waterworn ; whereas the 

 tinstone in the newer drift is bright, and has undergone but little 

 attrition. Some of the fragments or pebbles of rolled tinstone 

 weigh many pounds, notably on the Butchart Tin Mine. 



The minerals found associated with the stream tin are much the 

 same as those found with it in situ ; but in addition we find gold 

 in small quantities, diamonds, the sapphire, zircon, pleonaste, topaz 

 often of large size, bismuthite, rutile, and others. 



Up to the present, most of the tin has been obtained from the 

 New England district. 



Rolled wood tin of a grey and black colour, at Abingdon ; also 

 at Grenfell, with extremely well-marked concentric and radiate 

 structure, composed of red, brown, and black bands, other frag- 

 ments made up of alternate light and dark-grey bands. Also 

 Lambing Flat and Grampian Hills. 



Localities. — The Undercliff and Bookookoorara, in county 

 Buller ; Tea-tree Creek, tributary of Orara River ; Mitchell and 

 Henry Rivers (County of Gresham) • Gordon's Creek, Glen Creek, 

 Ranger's Valley, Shannon River, Severn River, Paradise Creek, 

 Sheep-station Creek, Spring Creek, Stockyard Creek; Swan Creek, 

 near Inverell ; Yarrow River, Middle Creek, Auburn Yale Creek, 

 Cope's Creek, Sandy and Moredun Creeks, tributaries of the 

 Bundarra, Kentucky Ponds, Honey's Creek, Honeysuckle Creek, 

 Gwydir and Rocky Rivers, Sandy Creek, "Warialda Creek, Myall 

 and Reedy Creeks ; Bald Rock ; Nangahra, Tiabundie, and 

 Mount Lowry Creeks ; Maryland and Herding Creeks ; Boonoo 

 Boonoo; Mount Mitchell and Oban, Sara and Ann Rivers, Uralla, 

 Carlyle Creek, Deepwater, Mole River, and Sandy Mount ; Bende- 



