raw specimen of gray limestone sedimentary rock stone on white background.

accumulate alteration background brown carbon changing clastic clay close-up combination commonly components conditions conglomerate consisting contrast crust crystal crystallizes decoration deposits diorite earth earth's earth’s environmental essentially garden geology granite gray hand holding igneous important isolated limestone macro magma manganese material melted mineral mineral-rich minerals mining molten natural nature object once-living ore organisms outdoor piece pink pre-existing preexisting pressure raw response result rock sedimentary specimen stone subjected subtraction surface temperature texture variations volcanoes sample explorer's white background