GEOLOGY AND PETROGRAPHY OF THE PROSPECT INTRUSION. 50") 





I. 



II. 



III. 



IV. 



H 2 O(100°O. + ) 



3*58 



2*93 



2-08 



1-98 



00 g 



0*03 



1*36 



0*06 



0*54 



Ti0 2 



4-39 



2-16 



1*78 



1-14 



Zr0 2 



abs. 





abs. 





P 2 5 



0'19 



0-32 



0*42 



0'34 



S0 3 



...* 



... 



0*13 



... 



01 



trace 



0-02 



o-oi 



0*01 



S(FeS 2 ) FeS 



0'35 



0-26 



abs. 



... 



Or 2 3 



trace* 



... 



0*02 



... 



NiO, OoO 



0*02 



0*06 



0-0L 



... 



MnO 



0*17 



0-23 



0*12 



0*13 



BaO 



abs. 



0*02 



0*05 



... 



SrO 



ft race* 



trace 



trace* 



... 



Li 2 



abs. 



trace 



abs. 



... 



V 2 3 



0*06 



0-05 



0*03 



... 



O11O 



trace 



... 



trace* 

 99*90 



... 





100*31 



100*30 



100*42 



Specific gravity 3*058 2*814 2*947 2*665 



* Less than 0*01%. f Spectroscope. X Flame Eeactions only. 



No. 3465, Pyrites was observed in this sample. On heating some 

 of the finely powdered rock ivith sulphuric acid and hydrofluoric acid 

 fine pyrites was left. No pyrites in No. 3464. — J. C. H. Ming aye. 



I. Essexite, Specimen I towards north end of Reservoir Quarry. 

 J. C. H. Ming aye's analysis. 



11. Essexite, probably from Emu Quarry (see text). J. C. IT. 

 Mingaye's analysis. Quoted from Rec. Geol. Surv. N.S.W., 

 Vol. Fit, part Hi (1903)^. 230. 



III. Pallio-essexite, Specimen B, south end of Reservoir Quarry, 



J. C. H. Mingaye's analysis. 



IV. Essexo-aplite, coarser-grained variety, Reservoir Quarry, H. P. 



White's analysis. 



