96 



Case 76. 



Phosphates. 



Fuller's Earth 

 Kaolin. 



Tripolite. 



fire-clay. 



Ashestos. 



Various phosphates and other soluble deposits have teen 

 found in the limestone caves at Jenolan ; they would be valuable 

 for agricultural purposes if they could be procured in large 

 quantities. 



9176, hydrous phosphate of alumina. 



9177, hydrous phosphate and sulphate of lime. 



7746, hydrous phosphate of alumina with much silica. 



9179, hydrous phosphate of alum^ina and potash (minerrite). 



9180 and 9715, nitre. 



7006, Gordonbrook ; a narrow vein of apatite — phosphate of 

 lime — traversing granite. 



Small deposits at "Wingen and Curlewis. 



China Clay. — Kogarah, Carlingford, Molong, Mudgee, Cudal, 

 Manning River, Burrowa, Peak Hill, Bombala,- Tumut, Parkes, 

 UlladuUa, Kiandra, Dalton, and Dunbible. Several are accom- 

 panied by analyses, and a few by manufactured articles.* 



Diatomaceous (or Infusorial) Earth : a deposit made up of the 

 siliceous frame-work of microscopic plants known as diatoms. 

 The material is very porous and very low in density, owing to 

 the microscopic particles being hollow. A red jasper occurs with 

 the Cooma earth. 



Barraba, Cooma, Warrumbungle Mountains, "Wyrallah (Tweed 

 Eiver), and elsewhere. 



The Cooma deposit has been worked, but only to a sliglit 

 extent. A little material has also been taken from the Tweed 

 Hiver deposit. 



Maitland, Lithgow, Toung, Mount Hope, Waratah, Burraga, 

 Groulburn, Parramatta, with analyses. 



Asbestos of good quality lias been found in serpentine country 

 at Jones Creek, G undagai, and a small patch was worked some 

 years ago. Inferior samples are from Eockwell Paddock (Broken 



* An ultimate analysis gfives very little griiidance as to the value of a clay for commei-oia 

 purposes. The proportion of quartz, felspar, &c., of which clays are generallj- made up, is 

 much more valuable ; ati analysis that gives this is known as " rational." 



