Stones for Building and Decoration

abundant acid andesite augite beautiful beds belt biotite black mica blocks brown buff building purposes building stone calcareous calcite carbonate cement cent chemical City coarse color compact composition constituents construction contain County Creek crystalline crystals cubic dark gray deposits diabase diorite disintegration dolomite durable east eastern exposure extensively quarried feet in thickness feldspar fine-grained formation furnish gabbro Geological gneiss grains granite granular green greenish hard hornblende inches iron oxides joints Lake layers less light gray lime limestone magnesia marble massive material mica miles mineral monumental Mountain nearly obtained occur onyx oolitic ornamental orthoclase outcrops owing Pennsylvania pink plagioclase polish porphyry portion present pyrite pyroxene quarries quartz readily rhyolite River rock sandstone schist serpentine siliceous Silurian slabs slate soft structure surface syenite texture tion town Triassic variety varying veins Vermont vicinity weather York