LIMESTONE
LIMESTONE
Limestone is a sedimentary rock such as greater than 50% calcium carbonate ( calcite – CaCO3). There are many exceptional kinds of limestone formed thru a ramification of tactics. It may be precipitated from water ( non-clastic, chemical or inorganic limestone), secreted by using marine organisms including algae and coral (biochemical limestone), or can shape from the shells of lifeless sea creatures (bioclastic limestone). Some limestones form from the cementation of sand and / or mud by way of calcite (clastic-limestone), and these often have the appearance of sandstone or mudstone. As calcite is the precept mineral thing of limestone, it will fizz in dilute hydrochloric acid.
Colour: It can be yellow, white, or gray
Type of Limestone:
- Bituminous limestone
- Carboniferous Limestone
- Coquina – A sedimentary rock that is composed mostly of fragments of shells
- Coral rag
- Chalk – A soft, white, porous sedimentary rock made of calcium carbonate
- Fossiliferous limestone
- Lithographic limestone
- Oolite – Sedimentary rock formed from ooids
- Rag-stone – Work done with stones that are quarried in thin pieces
- Shelly limestone
- Travertine – A form of limestone deposited by mineral springs
- Tufa – Porous limestone rock formed when carbonate minerals precipitate out of ambient temperature water.
