NEW SOUTH WALES MINERALS. 225 
WOLFRAM. 
Of the usual bronzy-black colour, sub-metallic lustre ; opaque ; 
lamellar structure, only traces of crystal faces. Found in quartz 
veins with tin-stone, Inverell. 
Analysis. 
Tungstic acid re ae ee ie ae Oe 
Iron protoxide ... a ae ...  18°760 
Manganese... i Se é oS 4°121 
100°521 
A pink schistose mineral was found embedded in the slates and 
she rocks at the S.E. corner of Rocky Ridge, by the late Dr. 
Thomson, Professor of Geology in the University of Sydney, and 
Mr. eo hea 
tongue ; is Enemies ydrochloric acid with se 
fs ular silica ; yields a very pleasing bright pink-coloured 
ea in a tube it evolves moisture, darkens, but re-acquires its 
original colour on coo g. the incisilesg: is sienerd only a 
non-crystallized decomposition product it is unnecessary to give it 
a name, 
Analysis. 
Water lost at 105° C. ; 1°335 
Silica es 61°951 
Alum ple oe ie is 120 
Tron comets is oa es ee 1°222 
» sesquioxide.. ie Ap ae 3°400 
ee oe ce 
me oe pe 
100°000 
CONE en ee 
a coe wea pened Fields, by Thomson and Taylor. Jour. Roy. 
