172 THE GRANITES OP MAINE. 
Metropolitan Street Railway (Interurban), Ninety-fifth to Ninety- 
sixtli streets and First avenue to Hudson River, New York. 
The New England granite quarry is in the town of Jonesport, on 
the south side of Head Harbor Island (Hacketts Harbor). Owner, 
New England Granite Company, Jonesport, Me. 
The granite (specimen 89, a) is a biotite granite of general dark 
reddish-gray color, with both a pinkish and a whitish feldspar, and 
of coarse, somewhat porphyritic texture, with feldspars up to an 
inch in diameter and biotite under one-fifth inch. It consists of the 
same minerals as the granite of the north side of the island, described 
above. The only percept tble difference is that here the spaces between ] 
the feldspars, instead of being filled with quartz, seem to be occupied 
by a mixture of quartz and line pinkish orthoclase, and the rock is 
thus slightly porphyritic. The effect is to diminish the contrast 
between the quartz and the orthoclase. 
The quarry measures 2Q0 by LOO, and up to 25 feet in depth. 
Rock structure: The sheets, from 3 to 8 feet thick, dip 10°, and are 
crossed by vertical joints striking N. 10° E., spaced 20 feet or more; 
also by a set striking cast-west and spaced in the same way. 
The plant consists of 2 derricks and 2 hoisting engines. 
Transportation was effected by means of a track 3,000 feet long to 
a wharf in Hacketts Harbor. 
No work has been done since 1 S * > 7 . 
The Hardwood Island quarry is in the town of Jonesport, on Hard- 
wood Island, which lies 3^ miles southwest of Jonesport village. 
Operator, Rockport Granite Company, Rockport, Mass. 
The granite (known commercially as " Moose-a-bec red") is a 
biotite granite of general dark reddish-gray color, with a white and 
a pinkish feldspar, and of coarse, even-grained texture, like that of 
specimen 88. a. from Head Harbor Island, described on page 171, but 
with an occasional isolate* I feldspar. 
The Rosiwal method of determining approximately the proportions 
of the chief mineral constituents was applied to a specimen of this 
granite having a polished face measuring 5 by 3 inches. The size 
of mesh was 0.0 inch; total length of lines, 40.20 inches. Owing to 
the irregular massing of the feldspars in the specimen a second test 
was made with the short set of lines shifted one-fourth inch, and the 
long set adjusted accordingly. The results of both tests were aver- 
aged for the final estimate. 
