basalt Synonyms

silex living rock amphibolite metamorphic rock aplite sedimentary rock pillow lava hornfels eveslogite igneous rock whinstone whin slag soapstone stone syenite tachylyte talus trachyte tuff galaxite hardstone pudding stone dark rocks druid stone effusive rock extrusive rock festooned pahoehoe glassy volcanic rock lower continental crust mantlerock crystalline rocks bazalt calcilith sial siltstone volcanic glass hard greyish-black stone hard black stone hornstones granitelike rock block lava monolithic rock shale andesite earthenware eclogite flint gabbro gneiss