SCHEELITE IN NoVA SCOTIA. — By A. L. McCaLLUM, B. Sc, 



Halifax. 



Read 14lh December, 19U8. 



The deposit under consideration is situated at the western 

 boundary of the Moose River gold district, Halifax county, 

 being about 1^ miles west of the old Torquay crusher. 



The first discovery made was a boulder containing a fairly 

 large amount of tungstite. Up to the present no more of this 

 tungstite has been found, but always unaltered scheelite. 



The first scheelite drift was found m the bed of a small 

 brook which runs through the property. Scheehtc drift was 

 found quite plentifully in this brook up to a point beyond which 

 at that time we were not able to find more. At this point a cut 

 was made in the bank with the result that the first scheelite 

 vein was found. A small trial pit was sunk at this place and 

 another one a little further east on the same vein. 



The formation shown by this work was as follows : Very 

 sharply defined "whin" (quartzite) walls with a three foot slate 

 belt between, dipping at an angle of about 75° n. The vein is 

 on the footwall and consists of a series of lenses of varying sizes. 

 The vein-matter is composed of scheelite, quartz and a little 

 mispickcl (arsenopyrite) . The vein-matter is very irregular in 

 composition, varying from pure scheelite to pure quartz or pure 

 mispickel, and all combinations of these three. 



Subsequently drift was found north of this vein, and event- 

 ually three veins were found abcut fifty feet north. To the 

 south of this first vein, ten veins in all have been opened up. 

 Several of theso at the points opened up are too low-grade to be 

 of any value. The rest are all fairly high grade. On account 

 of the great variations in the composition of the vein-matter, 

 it is diflScult to form an opinion of the average contents of the 

 veins taken as a whole ; but leaving out those that are too low- 



(250) 



