148 THE GRANITES OF MAINE. 
Rock structure: The outcrop is about 200 feet from northeast to 
southwest by 40 to 50 feet across, and occurs in a chloritic-quartzose 
shale, striking- N. 45° E. In places, however, there intervenes a 
granite porphyry containing crystals of orthoclase largely altered 
to muscovite, chlorite, and biotite. The sheets are from 6 inches to 
6 feet thick and dip S. 60° E. at an angle of 30°. Vertical joints 
strike N. G0° W., forming a heading on the northeast, and recur at 
20-foot intervals, also striking X. 20° W '. and spaced from 2.1 to 8 
feet. Both the above show marks of slippage. There is also a diag- 
onal set striking X. I.V W. and dipping 45° SW., recurring irregu- 
larly. The rift seems to be parallel to the sheets. Sap occurs along 
the joints. There are quartz veins parallel to the sheets and rift. 
There is no machinery. 
Transportation involves cartage of 1 mile to the new Maine Xorth- 
ern Seaport Railroad, or 5| miles to Bangor. 
The quarry is worked only occasionally. 
The product is used for dies, memorial tablets, and wainscoting. 
Specimen monuments: Die on soldiers' monument at Ilermon; about 
20 dies in Mount Hope and Mount Pleasant cemeteries at Bangorj 
dies at cemetery at Springfield, Me.; cornerstone of Catholic Church 
at Orono; keystone, etc., at Lord IlaH at University of Maine. 
PISC V.TAQX is CO! NTY. 
One quarry in Piscataquis County is in the town of Guilford. 
The Queen City Granitt quarry is \\\ miles from Foxcroft. Oper- 
ator, Queen City Granite Company; office, Oak street, Bangor, Me. 
The granite (specimen 107. a) is a biotite ■■muscovite granite of 
light-gray shade and medium to coarse, even-grained texture, with 
feldspars up to one-half inch in diameter and biotite scales up tc 
0.15 inch. It consists, in descending order of abundance, of vem 
slightly bluish white potash-feldspar (microcline), smoky quartz, 8 
whitish soda-lime feldspar (oligoclase), black mica (biotite). anc 
much less white mica (muscovite), together with accessory magnetite 
The oligoclase is partly altered to a white mica. As the feldspars ar< 
of similar shade and the muscovite is present in small amount th 
contrasts are between the feldspar, smoky quartz, and biotite. an( 
they are marked. 
The quarry measures 100 by 50 feet and has a maximum deptl 
of 70 feet, the average being about 35. It had not been worked fo ' 
two years. 
The stone is used for building. The trimmings of a brick build- 
ing erected in 1899 for Bangor Theological Seminary and those o'l 
the Stetson Block at Bangor are made of it. 
