A white concretionary form of calcium carbonate, usually hard and semicrystalline. It is deposited from the water of springs or streams holding lime in solution. Extensive deposits exist at Tivoli, near Rome.
Limestone used for building in Rome
A tan or light-colored limestone used in Italy, and elsewhere, for building. The surface is characterized by alternating smooth and porous areas.
A rock composed of calcium carbonate deposited from solution in ground or surface waters.
See MARBLE, TRAVERTINE MARBLE.
general term for calcite speleothems.
Calcium carbonate deposits which form in caves and around hot springs where carbonate-bearing waters are exposed to the air. The water evaporates, leaving a small deposit of calcium carbonate.
terrestrial deposit of limestone formed in cave and around hot spring where cooling, carbonate-saturated groundwater is exposed to the air.
Freshwater limestone deposited by springs, commonly with the help of bacterial activity.
A calcium carbonate rock having a coarsely cellular structure formed form the deposits of spring and cave waters. Travertine stone can be called either a marble or limestone.
a type of crystalline, white limestone formed by chemical precipitation of ground waters and hot springs. In limestone caves, travertine forms stalagmites and stalactites, and a more ‘spongy' limestone called tufa around hot springs.
a natural stone, it is white and is a form of calcium carbonate and is very hard in texture.
Sedimentary rock of calcite or argonite, with limonite impurities (frequent fossils). (3 - 4)
This light yellow- or pink-colored, porous stone with a classification of #6 on a standard scale is used for both sculpture and building construction purposes. It is a sedimentary rock often found in caves and is composed mostly of calcite formed from the solution deposits of ground or surface water.
Falling somewhere between marble and limestone for hardness and porosity, often characterised by a pitted surface which can be filed with grout.
travelling rock formation created by the redeposition of calcium carbonate.
Calcium carbonate precipitated from groundwater.
a light-coloured limestone commonly used for buildings in the region around Rome
A variety of limestone deposited by hot or cold water as cavern fillings, including stalactites and stalagmites, or as accumulations at springs.
A dense, frequently concentric, form of calcium carbonate created by the rapid chemical precipitation from ground waters (limestone cave formations) or by evaporation around hot springs.
A variety of limestone distinguished by layered structures of pores and cavities producing a open texture.
The stone from which ancient and Renaissance Rome was built, it's known for its hardness, light coloring, and tendency to be pitted or flecked with black.
A form of limestone used for a variety of building purposes.
Travertine is a sedimentary rock. Travertine is a natural chemical precipitate of carbonate minerals; typically aragonite, but often recrystallized to or primarily calcite; which is deposited from the water of mineral springs (especially hot springs) or streams saturated with calcium carbonate. When pure, travertine is white, but often is brown to yellow due to impurities.