What is the main difference between chemical limestone and biochemical limestone?

Difference between Chemical Limestone and Biochemical Limestone

Chemical limestone:

These rocks are known basically known as the sedimentary rocks which is composed of , calcium carbonate. These rocks are found in form of mineral calcite. It originates in clear, warm and shallow water.

Biochemical Limestone:

Biochemical limestone are the sedimentary rocks which are formed by locking calcium carbonate into the fossil shells and remaining skeletons formed through marine organism. The water plant and animals all die in the water; the water pressure breaks them apart which would result in biochemical sediment which consists of remaining of organism.

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