20 NOVA SCOTIA COALS AND OTHER MINERALS — GILPIN. 



In every metallurgical business ores are bought Ijy the per- 

 centage of metal they contain, limits are fixed for the impurities, 

 and within these limits the amount to be deducted from the 

 value of the metal varies. 



Thus, two coals, showing respectively — 



Combustible matter 92.00 92.00 



Water 50 2.50 



Sulphur 50 .50 



Ash 7.00 5.00 



will not have the same values as fuels, nor equal adaptabilit}" 

 for many metallurgical purjjoses. Now, assuming the amount of 

 combustible matter to be suited to the purposes of the purchaser, 

 and he wishes to make ffas for li^htinp-, the first fuel is worth 

 more to him than the second ; while to the purchaser for domes- 

 tic purposes, the lessened amount of ash in the second coal would 

 outweigh the amount of moisture he would have to purchase 

 with it. 



1. Coal from the Victoria Colliery of the Low Point, Barasois, 

 and Lingan Mining Company. 



Coal bright and compact, breaking into elongated blocks, and 

 blocks having a cubical fracture. The deposition planes are well 

 marked, and carry a good deal of mineral charcoal, and some of 

 the primary planes have films of calcspar. Pyrites is sometimes 

 visible in the deposition planes, and occasionally is presented in 

 small nodules. The average specific gravit}' of the coal is 

 about 1.3. 



Composition : 



.Slow Coking. Fast Coking. 



Moisture .75 .75 



Volat. Comb, matter 26.85 32.13 



Fixed carbon 68.13 62.85 



Ash 4.27 4.27 



100.00 100.00 



Sulphur 1.286 



Theoretical evaj^orative power . . 9.3 8.6 



