THE MINING AND QUARRY INDUSTRY I9II 69 



favor for monumental work >on account of its capacity for taking 

 fine tool work and the strong contrast of the hammered and rubbed 

 surfaces. The medium grained granite is very suitable for structural 

 material, its rock and hammered surfaces having a pleasing warm 

 tone, of lighter shade than the polished material. Some of the 

 structures for which this stone has been used include the new part 

 of the American Museum of Natural History in New York, the 

 National Bank in Clayton and the Maryland Museum Building 

 (polished columns) in Baltimore. 



An exposure of granite in the vicinity of Alexandria Bay has 

 been of some importance for the production of paving blocks and 

 rough stone. It is a finely textured stone which shows the effects 

 of regional compression, and belongs really to the gneissic types 

 that are so widespread in the western Adirondacks. The principal 

 quarry is a little south of Alexandria Bay and is opened in a knob 

 that rises 100 feet or more above the river. It is owned by J. 

 Leopold & Company of New York. The granite is rather variable 

 in color which is a drawback to its general use for cut stone though 

 well adapted for other purposes. It belongs to the biotite-muscovite 

 class and is mainly composed of alkali-feldspar and quartz. 



Granite in southern St Lawrence county. One of the largest 

 areas of massive granite in the Adirondacks is found in the towns 

 of Fine and Pitcairn, St Lawrence county, probably extending also 

 into the adjacent section of Lewis county. The area has not been 

 delimited or mapped as yet, and has never attracted attention appar- 

 ently for quarry development though traversed by the Carthage & 

 Adirondack Railroad which makes it accessible to the markets of 

 northern and central New York. The granite appears in practically 

 continuous outcrop for a distance of 8 miles along the railroad, in 

 the stretch between Harrisville and Benson Mines. The more avail- 

 able section lies between milestones 56 and 64 of the railroad line, 

 or 25 miles east of Carthage and a little over 40 miles from Water- 

 town. The granite for the most part shows a coarse massive 

 texture, but medium grained types appear near the borders where 

 also it becomes more or less gneissoid. Compared with the Thou- 

 sand Islands granite it has a lighter color, being light red to pink, 

 with often a mottled pink and white appearance from the vari- 

 colored feldspar. There are abundant quarry sites along the rail- 

 road, as many of the ridges within the central part of the area afford 

 natural exposures several hundred feet high. The results of field 

 and laboratory examination show the stone to be sound and free of 



