(Sample #2)
Rock Type: Sedimentary
Composition: mostly calcite
Particle Size: course or fine, can find presence of fossils
Hardness: 3-4
Environment: There are several ways for limestone to form. Calcite dissolves easily in warm water but when the concentration reaches a certain threshold, the calcite comes out of solution and is deposited on the sea floor as a chemical precipitate. The precipitates can build up with other sediments or on their own and eventually form limestone. Another way for limestone to form is by the buildup of shells and skeletons of marine animals.
Distinguishing Characteristics: Whitish grey with a chalky texture. There can be the presence of fossils or no fossils. Crude oil can also be found in limestone. Limestone also fizzes or bubbles when tested with hydrochloric acid.
Uses: Limestone with a high purity can be used as flux in the steel making process and is used in the production of glass. Other applications include paper production, sugar refining, acid lake treatment, and flue gas desulphurisation. Limestone has construction, agricultural and automotive applications. It is also supplied to feed mills and chickens.
Contact Us
Subscribe to this page