Kunz — Native Antimony f Torn New Brunswick. 277 



Fine grained variety. 



Gangue 5-04 per cent. 



Iron 0-34 " 



Arsenic 0'47 " 



The difference in both cases is metallic antimony free from 

 other admixture in large enough amount for detection, in the 

 quantity used for the examination (1 gram.) In working the 

 stibnite and accompanying ores on a large scale, to make the 

 golden sulphuret (Sb 3 S 6 ) gold and silver were observed in 

 sufficient quantities to suggest the working of the ore for 

 these minerals. 



Stibnite occurs largely in the quartz veins in a massive form 

 and in small diverging blades, and also in large masses with 

 blades from four to six inches in length, and from one-quarter 

 to one-half inch across. It occasionally occurs also in very 

 small crystals in cavities, usually all of a very dark graphite 

 color. In the seams between the layers of native antimony the 

 valentinite occurs in massive and granular forms ; also in 

 beautiful radiations of bunched crystals, the radiations meas- 

 uring over one and a half inches across. It occurs also at times 

 in small hemispheres and in small isolated imperfect crystals 

 not over 3 mm. in length. 



Kermesite occurs in the cavities in stibnite and the antimony 

 in small tufts of crystals, none of which were observed over 

 one-half an inch in length ; it occurs also in small hemispheres 

 as a rule in the cavities in the native antimony. The color is 

 from a dark .cherry red to nearly black, and the fracture of the 

 antimony is often streaked with this mineral. Dyscrasite, alle- 

 monite, senarmontite and native arsenic were looked for but 

 not observed, although it is highly probable that some of 

 these may yet be found. 



The country rock is a black argillite, and the veins of quartz 

 and calcite with stibnite which traverse it, vary from one to 

 thirty feet ; they are similar to the South Ham, Canada, de- 

 posits.* At the surface one of the principal veins had a dip 

 of S. 80° E. with a depression of 55° N. Several other veins 

 were N. 70° W. and S. 70° E. In following it from the points 

 where the shafts were sunk in a westerly direction an increase 

 of dip was observed. 



I take pleasure in expressing my thanks to Mr. C. E. Parsons, 

 of the Brunswick Antimony Co., for his kindness in furnishing 

 information as well as specimens of the minerals for examina- 

 tion. 



* Geology of Canada, 1863, p. 876. Beport by Charles W. Willimott, Geol. 

 Survey of Canada, 1880, 1881 and 1882, p. 3, G. G. 



