MINERALS OF THE C'OAL-Fltll.D OF NEW BR1 NBWICK. 



'J 17 



Table of all known Out-crops of workable Bituminous Shale and Asphaltum. 



Quantity of Coal raised at Grand Lake since 1828. 



1825, 

 1830, 

 1833, 

 1834, 



Albertite. — This most valuable mineral is wholly confined to the 

 rocks of the Lower Carboniferous Formation of King's, Albert, and 

 Westmoreland Counties. It has at different times and by different 

 authors been regarded as an asphalt, an asphaltic coal, a true coal, and 

 a jet; but most authorities now agree in considering the substance as 

 a variety of asphalt or a solid hydrocarbon, originally fluid, like 

 petroleum, and derived from the decomposition of vegetable or animal 

 products. The mode of occurrence of the mineral, and a discussion of 

 the views concerning its origin, having already been given in a 

 previous section, farther remarks in this connexion are deemed 

 unnecessary. 



From the original locality near Hillsborough, discovered in 1849, 

 56,289 tons have been exported in the three years, 1863 to 1865, 

 paying during the same period to the Government a royalty of 

 $8,089, 29. The principal market for this coal is in the United States, 

 where it is employed in the manufacture of nil and gas. Of the former, 

 it i.^ said to be capable of yielding 100 (crude) gallons per ton, while 

 of the latter the yield is 14,500 cubic feet, of superior illuminating 



