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Siliceous rock



Siliceous rocks are sedimentary rocks that have silica (SiO2) as the principal constituent. The most common siliceous rock is Chert other types include Diatomite. They commonly form from silica-secreting organisms such as radiolarians, diatoms, or some types of sponges.

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