QUARRIES IN HANCOCK COUNTY. 113 
Rock structure: The sheets, from 2 to 8 feet thick, dip 5° to 10° 
3E. Vertical joints strike N. 85° E., forming headings at the north 
ind south sides; also N. 10° E., parallel with a 4-inch diabase dike. 
A microscopic description of this dike will be found on page 48. 
The rift is horizontal and the grain vertical with east-west course. 
Knots are rare. 
The plant consists of 2 derricks and siphon pipe. 
Transportation is effected by cartage three-fourths mile to wharf. 
The product is used for curbing and random stone in Philadelphia, 
New York, and Boston. 
The Dunbar Brothers'* quarry (leased from Crabtree and Havey) 
is 2^ miles northwest of Sullivan village, in the town of Sullivan. 
Address, Sullivan. 
The granite is a biotite granite of medium-gray shade and coarse 
(inclining to medium), even-grained texture, like that of the Robert- 
son & Havey quarry, in Franklin, described on page 90. 
The quarry, opened in 1901, measures 250 by 100 feet and is from 
1 to 8 feet in depth. Its drainage requires occasional pumping. The 
stripping consists of 2 feet of drift, with small bowlders. 
Rock structure: Sheets, from 2 to 12 feet thick, undulate with a 
general easterly dip of 10°. Vertical joints strike N. 80°-85° E., form- 
ing a heading on south side of quarry, and N. G0° E. with a heading; 
also exceptionally N. 5°-10° E. The rift is horizontal. A diabase 
dike from 8 to 1G inches thick has a course X. 20°-25° E., and rims 
of epidote, as described on page 48. There is little or no- sap, and 
knots are few. 
The plant consists of 2 derricks (horse) and 1 pump. 
Transportation is effected by cartage 1 j miles to wharf. 
The product is random, curbing, and paving, which go to Boston, 
New York, and Philadelphia. 
The Harvey Dunbar quarries consist of several small openings in 
West Sullivan, operated by Harvey Dunbar (address, Sullivan), who 
employs 8 men in getting out paving blocks. 
The Taylor quarry is in the town of Sullivan, on the west side of a 
north-south ridge, 2 miles from Sullivan village. Owner, Harry 
Taylor, North Sullivan. Quarry not operated in 1905. 
The granite (specimen 79, a) is a biotite granite of medium-gray 
shade and fine to medium even-grained texture, consisting, in descend- 
ing order of abundance, of grayish potash feldspar (orthoclase and 
microcline), smoky quartz, grayish soda-lime feldspar (oligoclase), 
and black mica (biotite), together with accessory magnetite. The 
feldspars measure from 0.1 to 0.25 inch and the biotite scales up to 
0.1 inch. The rock is identical with that of the Stimson quarry, 
described on page 111. 
3495— Bull. 313—07 8 
