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Coralline rock



Coralline Rock is a type of rock formed by the death of layers of Coralline algae. It is visually quite bright like the algae, and is often desired as aquarium decoration. Since it is formed from the dead algae, it contains some nutrients and calcium carbonate, which has allowed it to be used in some building structures.


 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Coralline_rock". A list of authors is available in Wikipedia.
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