QUARRIES IN KNOX COUNTY. 129 
at the north end of the quarry; another, divided into many parallel 
ones, strikes N. 70° W. and dips 70° N. These dikes all consist of 
white feldspar, quartz, muscovite, black tourmaline, and garnet. Sap 
occurs up to 18 inches thick along sheets and joints. 
The plant consists of 1 derrick and 1 hoisting engine, 1 Blondin 
carrier, 1 locomotive crane. 1 compressor (capacity 500 cubic feet of 
air per minute). 3 steam drills. 3 pneumatic plug drills, and 1 steam 
pump. 
Transportation is effected by inclined track 900 feet to wharf. 
The product is used chiefly for monumental work, being specially 
adapted to rough face and fine work. It goes chiefly to Greenwood 
and other cemeteries near Brooklyn. N. Y. The small beds and waste 
are worked into paving blocks. Specimen buildings, etc.: Albany 
po-t-office, Bates Building. Philadelphia, and part of Saratoga monu- 
ment. 
THE atJARRIES OF VINALHAVEN AND HURRICANE ISLANDS. 
These and the adjacent island- have been known collectively as 
the Fox Islands and their granite a- Fox [sland granite. The gran- 
ite industry of these island- i> distributed over an area about 5 miles 
from east to west by 4 miles from north to south. The locations of 
the quarries are shown on the map fig. 25. Some of them are near 
the center of Vinalhaven Island. The Palmer quarry is on the west 
shore; the Black and Webster quarries art' on the easl shore; the 
Sands, Harbor, and Armbrust quarries are on the south shore, near 
Vinalhaven village, while the Pequoit and Duschane Hill quarries 
lie east of the village near the east shore. There are some minor 
quarries (" motions") on Barton. Gundelow, and Green islands, and, 
finally, there is the important quarry on Hurricane Island. As will 
be seen from the description-, there i> little difference between the 
coarse granites of the Hurricane Isle, Sands. Harbor, Armbrust. 
Black, Webster, and Palmer quarries, but the Duschane Hill and 
Pequoit quarry granites are fine textured, as i- also that from an 
abandoned opening in Vinalhaven village. 
PL II, .1. shows the conspicuous east-west jointing in the granite 
on Heron Xeck at the south end. of Green Island. The same system 
of joints recurs on Hurricane Island and at the Sands and Armbrust 
quarries. 
The Sands quarry is in the town of Vinalhaven, at the northeast 
side of the head of Sand Cove (see maps, PI. I and fig. 25). Oper- 
ator, Bodwell Granite Company: office. Kockland. Me. 
The granite (specimen 1. b) is a biotite granite of general pinkish- 
buff, medium-gray color and of coarse, even-grained texture, the 
feldspars measuring up to three-fourths inch (rarely 1 inch) and the 
3495— Bull. 313—07 9 
