114 BULLETIN Oi, UNITED STATES NATIONAL MUSEUM. 



MOUNT DYERING, SINGLETON DISTRICT, NEW SOUTH WALES. No. 479. 



Stony-iron, Pallasite. Oxidized piece some 70 by 60 by 20 mm., 

 polished on one side. Shows no metallic iron. Weight, 190 grams. 

 Found in 1903 by an aboriginal at Mount Dyrring, 8 miles north of 

 Bridgman. Original weight, 25 pounds. Mineral composition, as de- 

 termined by George W. Card: 



Per cent. 



Olivine 72. 00 



Nickel-iron 2.5.00 



Schreibersite and troilite 1. 00 



AI2O3 NasOa, etc 2.00 



100. 00 



Bulk analysis by John C. H. Mingaye yielded: 



Per cent. 



Moisture at 100° C . 82 



Water about 100° C 3. 89 



Silica (SiO=) 25. 64 



Alumina (AUO3) - 1.32 



Ferric oxide (Fe^Os) 29.90 



Ferrous oxide (FcO) 7. G5 



Manganous oxide (MnO) * Trace. 



Lime (CaO) .01 



Magnesia (MgUj 27.90 



Soda (Na=0) .14 



Potash (K2O) 'Trace. 



Nickel protoxide ( NiO ) . 2. 11 



Cobalt protoxide (CoO) 'Trace. 



Chromiiun se.squioxide (Cr^Os) .11 



Titanic oxide (TJO2) 'Trace. 



Sulphur trioxide (SO3) .15 



Carbon dioxide (CO2) .13 



Vanadium oxide (V-O3) Absent. 



Copper oxide (CuO) "Trace. 



Pho.sphoric anhydride (P2O0) .51 



Chlorine (CI) .01 



100. 29 



No tin detected. Traces of gold, platinum, iridium, and palladium. 

 Reference. — J. C. H. Mingaye, Ilec. Geol. Surv. New South Wales, 

 vol. 7, 1900-1904, p. 305. 



»Lcss than 0.1 per cent. 'Copper, 0.005. 



