CHAPTER II, 
BUILDING MATERIALS, ETC. 
e this chapter I propose to enumerate the principal quarries whence 
stones used for building purposes are obtained; mention whatever 
facts have been obtained respecting the quantity of material sent to mar- 
ket; the names of the companies; number of men employed, etc. The 
articles used for building are properly granite, slate, flags, clays for 
brick, limestone, and soapstone. Other useful articles, obtained from 
the earth for direct use, or capable of special manufacture, are quartz and 
feldspar for glass; mica, plumbago, precious stones, whetstones, copperas, 
alum, titanium, polishing powder, moulding sand; and ochre for paint. 
These all occur abundantly within our limits, 
GRANITE. 
So common is this rock that New Hampshire is usually known as the 
Granite State. In every-day life this term is applied to rocks which are 
not properly granite in the technical sense, as sienite and gneiss, but all 
of them useful for building. In the stratigraphical and mineralogical parts 
of our report, different classifications are employed. In the first instance 
are the Concord, Conway, Albany, Chocorua, and other geographical 
terms, used for convenience. In the second instance, the names of the 
peculiar constituent minerals are employed to distinguish them,—as the 
biotite, muscovite biotite, and hornblende granites. It will be unneces- 
