Bulletin of the New York State Museum, Vydania 308–313

Adirondacks Albany albite Allegany amphibolite anorthosite apatite augite Balk biotite border cent color County Creek diabase east evidence facies fault feet feldspar ferromagnesian minerals Figure folds foliation gabbro garnet garnet deposit garnet gneiss Geol Geologist Geology glacial gneiss gneissic structure Gore mountain grains granite gray band Grenville rocks Grenville sediments Group hornblende hypersthene igneous rocks inches Indian intrusion joints labradorite labradorite crystals lenses limestone linear structure Lyon Mountain mafic magma magnetite masses metagabbro microcline microperthite miles Miller N. Y. Specimens N. Y. State Mus northeast northwest occur origin outcrops Paleozoic parallel Park pegmatite Piseco Piseco Lake plagioclase pond Precambrian pyroxene quartz syenite quartzite recrystallized region relation rims river Santa Clara Complex Santa Clara quadrangle scientific sills slope St Regis granite surface syenite and granite syenite-granite syncline thin section Thirteenth Lake quadrangle tion titanite valley York State Museum zone