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Types of Limestone

Bituminous Limestone
Bituminous Limestone

Bituminous limestone is limestone impregnated and sometimes deeply colored with bituminous matter derived from the decomposition of animal and plant remains entombed within the mass or in its vicinity.

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Carboniferous Limestone
Carboniferous Limestone

Carboniferous Limestone is a collective term for the succession of limestones occurring widely throughout Great Britain and Ireland that were deposited during the Dinantian Epoch of the Carboniferous Period.

Chalk
Chalk

"Chalk" is a variety of "limestone" which is composed primarily of the shells of single-celled, calcium carbonate secreting creatures. Think about this next time you use chalk - that white stuff all over your hands is actually countless individual shells, each microscopic in size and the former home of a living being.

Coquina
Coquina

A coquinite is a stronger, more-consolidated version of coquina, whereas coquinoid limestone is made up of these same shell fragments within a fine-grained matrix. coquina Coquina. Encyclopædia Britannica, Inc.

Coral rag
Coral rag

Coral rag is a rubbly limestone composed of ancient coral reef material. The term also refers to the building blocks quarried from these strata, which are an important local building material in areas such as the coast of East Africa and the southeastern United States littoral (e.g. Florida, Bermuda).

image: quazoo.com
Fossiliferous Limestone
Fossiliferous Limestone

Fossiliferous limestone is any type of limestone, made mostly of calcium carbonate (CaCO 3) in the form of the minerals calcite or aragonite, that contains an abundance of fossils or fossil traces. The fossils in these rocks may be of macroscopic or microscopic size.

Lithographic Limestone
Lithographic Limestone

Lithographic limestone is hard limestone that is sufficiently fine-grained, homogeneous and defect free to be used for lithography. Geologists use the term lithographic texture to refer to a grain size under 1/250 mm.

Oolite
Oolite

Oolite or oölite (egg stone) is a sedimentary rock formed from ooids, ... This type of limestone is also found in Indiana in the United States.

image: flickr.com

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