QUARRIES IN HANCOCK COUNTY. \)7 
Transportation is effected by a track and cable one-fourth mile 
long from upper quarry to the wharf and a short one from the lower 
quarry. 
The product of the upper quarry is used for buildings, and its thin 
sheets are used for paving. That of the Redcliff quarry is used par- 
ticularly for monuments and columns. The markets are Boston, New 
London, New York, and Baltimore. A contract for the Park Build- 
ing, in Brooklyn, X. Y .. was being executed in 11)05. 
The McMullen quarry is in the town of Mount Desert, southeast of 
village of " Hall Quarry," and four-fifths of a mile north of Robin- 
son Mountains. Operators, Arthur McMullen & Co., Park Row build- 
ing. New York. (In hands of a receiver in August, 1905.) 
The granite (specimen 55, aa) is a biotite granite of general light- 
grayish bun" color and coarse (inclining to medium), even-grained 
texture, consisting, in descending order of abundance, of buff-colored 
potash feldspar (orthoclase intergrown with plagioclase) , smoky 
quartz, milk-white soda-lime feldspar (oligoclase), and black mica 
(biotite), together with accessory apatite and a little secondary cal- 
cite within the oligoclase. The contrasts resulting from the different 
shades and colors of the four minerals are attractive and must come 
out still more strongly on the polished surface. Mr. E. C. Sullivan 
has examined this granite at the chemical laboratory of the United 
States Geological Survey and finds that it contains 0.014 per cent of 
C0 2 (carbon dioxide) and that warm dilute acetic acid dissolves 
traces of CaO (lime) and MgO (magnesia). This percentage of 
C0 2 , if all allotted to CaO, would imply the presence of 0.03 per cent 
of CaCOo (lime carbonate). The microscope also shows the presence 
of a carbonate in very minute quantity. 
The quarry, opened in about 1880, measures 250 feet from north to 
south by 250 from east to west and attains a depth of 50 feet at the 
west side. A little pumping is necessary at times to drain it. The 
stripping consists of 3| feet of drift and bowlders. 
Rock structure : The sheets are from. 2 to 12 feet thick and dip from 
5° to 10° north to south and east. They are faulted along some of the 
N. 25° W. joints, resulting in a toeing in of the sheets, which necessi- 
tates quarrying from west to east — that is, toward the hade of the 
faults, as shown in fig. 13. The courses of the joints are shown in the 
same figure. A forms a heading on the west, dipping 80° W. ; B, 
dipping 65° S., forms a heading on the north and recurs at middle of 
quarry; C 5 dipping 75° to 80° NW., forms a heading on the south and 
recurs at irregular intervals. The rift is horizontal and the grain 
strikes about east-west. Sap along some of the sheets is 3 inches thick 
and exceptionally 18 inches. The granite along joints A and B for 
the space of a foot is bright reddish. (See p. 52.) The faces are 
3495— Bull. 313—07 7 
