On a New Tungsten (Scheelite) Deposit at Lower Sack- 

 viLLE, Halifax County, N. S. — By Harry Piers, Cura- 

 tor of the Provincial Museum of Nova Scotia, Halifax. 



Read 21st May, 1923. 



Previous discoveries of Tungsten ores in Nova Scotia. — 

 Before describing the Tungsten prospect at Lower Sackville, 

 Halifax County, it will be well to very briefly refer toHhe occur- 

 rences of similar and related ores which had previously been 

 found in Nova Scotia since about 1893, the data regarding 

 which are much scattered. The ores so far found here are 

 Scheelite or Calcium Tungstate, Hubnerite or Manganese 

 Tungstate, Wolframite or Iron-and Manganese Tungstate, and 

 the decomposition product, Tungstite or Oxide of Tungsten. 



Tungsten ore in the form of Scheelite was apparently 

 first discovered in Nova Scotia about 1893 or '94, associated 

 with a little arsenopyrite and pyrite in a quartz vein intersecting 

 the main auriferous vein of the Quartzite Division of the Gold 

 Measures at the Ballou or Old American Mine, Malaga Gold 

 District, Queen's Co. (See Rept. Geol. Surv. Canada for 

 1894, n. s., vol. 7, p. 14 R.) 



It was next found as brownish Hubnerite in quartz in a 

 gneissic or granitic rock of Pre-Cambrian age at Tom Murphy's 

 Brook, Emerald, near Northeast Margaree, Inverness Co., 

 about 1897-98. (See Rept. Geol. Surv. Canada for 1898, vol. 

 11, p. 10 R. For specimen of this mineral, see Prov. Museum 

 ace. no. 1737.) 



In November, 1907, Tungstite, the yellow oxide of Tungsten, 

 was discovered in drift boulders IK mile west of the crusher 

 of the Consolidated Mines Company, Moose River Gold District, 

 in the eastern section of Halifax Co., by John A. Reynolds and 

 W. S. Currie, of Moose River, and was determined by A. L. Mc- 

 Callum and Dr. T. L. Walker, in May 1908, (see sample. Mus- 

 eum ace. no. 3237); and about June of that year Scheelite in 

 quartz was found by Mr. Reynolds in drift boulders near Still- 

 water Brook, about 2Va miles southwest of Moose River Gold 

 Mines, (see sample, ace. no. 3246); and finally in the latter 



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