262 Proceedings of the Royal Society of Victoria. 



Kamacite. — See note under taenite. 

 Keemesite. — Oxysulphide of antimony. 



Coating massive stibnite, Tallandoon ; fibrous I'adiating 

 tufts in a druse, with quartz crystals and stibnite from 

 a vein in a quartz i-eef, United Brothers' Mine, Sunny- 

 side* (W.). 

 Laumontite.*§ — Hydrous silicate of aluminium and calcium. 



Partly in small crystals, and otherwise coating a joint in 

 mesozoic sandstone, San Remo (R.). 

 Lead. — 



Rolled pieces from the gold drift, Park Company, Ballarat 



West (B.M.). 

 Earthy oxide of. — With wolfram, head of Boggy Creek ; in 

 cavities in quartz, Tambo Mine, Deptford (CI.). 

 Leucopyrite (?) — Iron arsenide. 



Bright tin-white patches in coarse granular quartz, and also 

 in tarnished patches in an iron-stained fine granular 

 quartz, Eldorado (W.). 

 Without analysis it is impossible to decide definitely whether 

 the iron arsenides are leucopyrite or lollingite, as the 

 variance in composition is the only distinguishing 

 feature. They also closely resemble arsenopyrite, for 

 which mineral they are probably often mistaken. It is 

 more than likely that there is a gradation from lolling- 

 ite to leucopyrite, and thence by the addition of sulphur 

 into arsenopyrite. Whether, like the latter mineral, 

 they are auriferous, does not appear. 

 LiMONITE. — Hydrous sesquioxide of iron. 



Pseudomorphous crystals after stilbite (?) and vivianite, 



Wannon (W.). 

 Analysis of limonite from the Mallacoota Proprietary Mine 

 (CI.): 



Ferric oxide - - - 41 "95 



Alumina - . . . 3-25 

 Water (hyg.) - - - 1-08 

 Water (combined) - - 6-85 



Bismuth . - - . trace 



Insoluble residue - - - 46"30 

 Gold, 7 ozs. per ton ; Silver, 6 dwts. per ton. 



