110 THE GRANITES OF MAINE. 
The granite is a coarse-textured, even-grained biotite granite like 
that of Green Island (p. 106). 
The quarry measures 75 feel square by 12 feet in depth. 
Rock structure: The sheets, which are from 1 to 5 feet thick, are 
horizontal but irregular. Vertical or steep joints strike X. 80° E.. 
N. 60° W., and N. 30° W. There is a foot of sap and "shakes" at 
the top. 
The plant consists of 2 hand derricks at quarry and 2 more at 
the wharf, which is connected with the quarry by a 400-foot track. 
The product is random and cellar stone, and is shipped to Boston 
and New York. 
The Grabtree & Havey </n<iri-i/ is in the town of Sullivan, three- 
fourths mile from Sullivan River. Operators, Crabtree & Havey] 
North Sullivan. 
The granites of the Franklin and Sullivan quarries, with hut one 
or two exceptions, arc of the general character described under groud 
9 en page 74. 
Hie granite of the Crabtree & Havey quarry (specimen 69, l>) 
is a biotite granite of medium-gray shade and line to medium even] 
grained texture, consisting, in descending order of abundance, of 
milk-white potash feldspar (microcline and orthoclase) , smoky quarta 
a milk-white soda-lime feldspar (oligoclase), and black mica (bio- 
tite). together with accessory magnetite. Hie stone Prom the lower 
sheets i> a trifle darker than that described above, which represent! 
that of the upper ones. The difference lies in the feldspar. 
The quarry, opened in L865, measures 300 feel from north to south 
and 200 feet from easl to west and ranges in depth from 10 to 50 feet. 
It is drained by occasional pumping. The stripping consists of 2 to 
3 feel of drift. 
Rock structure: The sheet-, from 3 to 8 feet in thickness, dip LOl 
W. and northwest. They are not very regular in the center of the 
quarry owdng to their lenticular form, shown in 1*1. V. .1 and 11. 
Vertical joints strike X. SO 85 \Y.. forming a heading on the north, 
also X. 10°- w 20° E., bounding the quarry on the east. A diabase dike 
)> feet wide occurs on the west side, faulted in two places with a dis- 
placement showing a thrust from the east. The rock contains many 
knots, some of them as large as 6 inches and a few \\ feet in diameter. 
Sap occurs along the sheets, hut not invariably. 
The plant consists of 3 derricks, 1 hoisting engine, and 1 pump. 
Transportation is effected by cartage three-fourths mile to wharf. 
The product i^ used for building, curbing, and crossings in Boston, 
Providence, and New York. The small beds go into paving blocks. 
A private residence in Chicago lias been constructed of the granita 
Contracts in L905 were for random stone, curbing, and paving in 
Boston, New York, and Philadelphia. 
