SOME NEW SOUTH WALES AND OTHER MINERALS. 321 
Analysis. 
LE IF. IlI 
Insoluble... tc oc BG 3°47 
ea 60-20 61:014 
Zinc... 15°50 14:85 
Sulphur 18-94 
Iron ... 2°62 
Copper 205 
Arsenic traces 
Antimony ... ... traces. 
100-625 
The proportion is about 3 PbS, 24 ZnS. 
Tt seems to be related to the minerals huascolite and 
kilmacooite! but with fairly well marked differences. I do not, 
however, think it need be named ; the term zinciferous galena 
describes it accurately without adding to the already excessive 
list of so-called new Species of minerals. 
LIMESTONE wiTH ConeE-1n-Cone Srructure—Picton, N.S.W. 
Evidently very impure, of a brown colour, and argillaceous 
appearance. An analysis of this was made in 1876, and for- 
warded to the Mineralogical Society, but lost in transit. 
IA a Vets on oe ee ee eee me ee? eee ee a 
Composition. 
Portion soluble in HGL wc 
ee a 
rem diets, 00, .. 4. . «S001 
Silica, SiO... 1-63 
Tron sesquioxide, Fe,0, ... 9 0. ss. 4°88 
Manganese oxide, MnO... ... ws “BD 
en NO is so ig eae 
eo Pena eae gp OD ee ay a ye 
Paes Ma O.552) 2x, i 
Portion insoluble in HCl ai parene ew byt 
aw Ghat, a 
i‘ 10071 
. _ nount of calcium carbonate being 68°20. The portion 
“Mile in hydrochloric acid was not further examined. 
- 1 Dana’s System of Mineralogy, 1892, p. 51. 
U—Aug. 7, 1595, 
PRE Pie ee eS ey eee, OES 
