Limestone

They're going to need to quarry a lot of limestone in order to build the new church.

The bristlecones grow well in limestone soil. Most trees do not grow well in such soil.

Most structures that we call "coral" are, in fact, made up of hundreds to thousands of tiny coral creatures called polyps. Each soft-bodied polyp—most no thicker than a nickel—secretes a hard outer skeleton of limestone (calcium carbonate) that attaches either to rock or the dead skeletons of other polyps.

In the case of stony or hard corals, these polyp conglomerates grow, die, and endlessly repeat the cycle over time, slowly laying the limestone foundation for coral reefs and giving shape to the familiar corals that reside there. Because of this cycle of growth, death, and regeneration among individual polyps, many coral colonies can live for a very long time.

Stromatolites are the limestone structures formed by photosynthesizing bacteria called cyanobacteria. They created layers of alternating slimy bacteria and sediment in very shallow water, dominating shallow seas until predators, such as trilobites, came into the picture.

Limestone lettuce was developed by James Bibb in 1865.

Limestone underlies most of the site.

Then, as it was necessary to let the smoking mass cool, Neb and Pencroff, directed by Mr. Smith, brought, on a hurdle made of branches, numerous loads of limestone which they found scattered in abundance to the north of the lake.

Among the findings are well-preserved paintings, funerary objects, sacred oil jars, and symbolic limestone gates to the afterlife.

Aboriginal tools discovered in a limestone cave in northern Australia are thought to be more than 35,000 years old, deepening understanding of Australia’s original residents.