a hard kind of stone; a form of silica more opaque than chalcedony(noun.substance)
source: wordnet30
a river in western Georgia that flows generally south to join the Chattahoochee River at the Florida border where they form the Apalachicola River(noun.object)
a city in southeast central Michigan near Detroit; automobile manufacturing(noun.location)
source: wordnet30
A massive, somewhat impure variety of quartz, in color usually of a gray to brown or nearly black, breaking with a conchoidal fracture and sharp edge. It is very hard, and strikes fire with steel.(noun)
source: webster1913
adjective satellite (s)
showing unfeeling resistance to tender feelings(adj.all)