112 



Transactions. 



Near the east end of the old workings the vein is thin and 

 the seam of quartz insignificant. Followed west, it increases in 



St oped 



Fig. 4. — Section across 

 Alta Reef. 



Fig. 5. — Section across 

 Alta Reef. 



width, and has a sinuous and irregular course, with numerous 

 leaders coming in on both 

 walls. The accompanying 

 sketches (figs. 4 and 5) illus- 

 trate the characters of the 

 vein. 



Near the end of an adit 

 driven close to the old bat- 

 tery-site scheelite is seen in 

 conspicuous bunches on and 



near the south wall, which Fig. 6. 



is here poorly defined (fig. 6). 



The scheelite in this reef has never been exploited, but the 

 reef was successfully worked for gold in the early days. 



Veins on the Lammerlaw Range, Waipori. 



Several of the small gold-bearing veins on the Lammerlaw 

 and Burnt Ranges, near Waipori, carry scheelite, sometimes 

 in considerable quantity, but they have never been developed 

 to any extent. 



A notable occurrence of the mineral is in the antimony-reef 

 at Stony Creek, nine miles from Waipori Township. At one 

 point in this reef scheelite and stibnite were found in close 

 association, and accompanied by gypsum. This last is evidently 

 a product of secondary origin, resulting from oxidation of the 

 sulphide ore and interaction with the scheelite. 



Among other occurrences, scheelite has been found in the 

 Barewood reef, and in the Saddle Hill reef. 



(2.) Bedded Veins. 



The reefs of Macrae's are bedded or segregated veins, and 

 are of peculiar interest in that they embrace all the veins of this 



