Limestone and Coal Definition

Definition of Limestone and Coal

The general Limestone and Coal definition can be stated as: Limestone is a sedimentary rock composed mostly of calcite and aragonite, which are different crystal forms of calcium carbonate. On the other hand, Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers called coal beds. Along with definition of Limestone and Coal, get to know about Properties of Limestone and Coal. Get to know more information about Limestone and Coal origin and discoverer, etymology and class.

History of Limestone and Coal

The history of Limestone and Coal gives information about where the rock was found and who was its discoverer. Almost each and every aspect of Earth's history is recorded in rocks be it the volcanoes which were erupted or the plants, animals and organisms which are now extinct, as rocks are present from millions of years.

Limestone and Coal Origin and Discoverer

Limestone and Coal definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Limestone and Coal. In this section, you will know about Limestone and Coal Origin and Discoverer. Origin of Limestone is New Zealand whereas Origin of Coal is USA. It is interesting to know the name of Limestone and Coal discoverer. The Discoverer of Limestone is Belsazar Hacquet and the discoverer of Coal is John Peter Salley.

Etymology of Limestone and Coal

Along with Limestone and Coal definition, know more about the etymology of Limestone and Coal. Etymology of Limestone and Coal gives information about origin and formation of a particular rock. Know more about Formation of Limestone and Formation of Coal. The etymology of Limestone is From lime and stone in late 14th Century while that of Coal is From lime and stone in late 14th Century. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Limestone and Coal belong to Sedimentary Rocks. The sub-class, group and other categories of Limestone and Coal are listed below.

For Limestone,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group:
• Other Categories: Fine grained rock and Opaque rock

For Coal,

• Sub-class: Durable Rock and Soft Rock
• Group:
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock