aggregate
block
calcium carbonate
cemented
cemented gravel
cobblestone
colors
conglomerate
conglomerate rock
geology rocks
grain
hands rock on hands
heavy
horizontal
isolated
limestone
lithification
mineral
mineralogical
mineralogy
natural
natural specimen
petrology
rock conglomerate
rough
sandstone
sedimentary
sedimentary rock
sedimentology
showing to camera
specimen
stone
stratigraphic
structure
textured
white
white background