COALS OF NEW SOUTH WALES. 177 
There still remains to be referred to, the torbanite or kerosene 
mineral, of which New South Wales possesses deposits of incom- 
parable excellence, at Joadja Creek, near Berrima, Hartle 
ing sandstone rock. The following are analyses of the ash of 
each division of the seam 
Top Coal. 
Percentage of ash, 6-71. The ash was slightly pink-coloured 
and very voluminous, i indeed it occupies about once and a half or 
ce the space of any of the other ashes examined, and nearly 
the b bulk of the original coal. 
Analysis— 
— and chlorine ... 4:05 Soluble in water. 
Alum i isi pe BASS 
Wevtin cs oxide rae a eee Re ag nag lot 
Lime id is pre 20 94-43 
Mag 
Pitcaiieie oxide 92 
Alumina... = 9215 
Ferric oxide: enc ... traces. { Insoluble in acid 
Sili = oe ... 48°86 71-01 
Undetermined and loss’... “41 
100-00 
Torbanite. 
Percentage of ar 10-27 ; mati UE, 1,098; 
Analysis— colour of Foxx greyish 
Al . 
umina i w. 14-74 
Ferric oxide. .; oes re ‘76 Soluble in acid 
Lime fee Fie ak oT 16-90 
Magnesia “45 
hk cn acid 65 
Alum PTH, ts BO 
Ferrie 0 iia: ee ... traces. { Insoluble in acid 
Sili 7712 82-51 
Undetermined and te sa 58 
