Radiolarite

Radiolarite is a siliceous, comparatively hard, fine-grained, chert-like, and homogeneous sedimentary rock that is composed predominantly of the microscopic remains of radiolarians. This term is also used for indurated radiolarian oozes and sometimes as a synonym of radiolarian earth. However, radiolarian earth is typically regarded by Earth scien...
Found on http://en.wikipedia.org/wiki/Radiolarite

radiolarite

The lithified sedimentary rock formed from radiolarian ooze.
Found on http://www.scientificpsychic.com/etc/geology-glossary.html

Radiolarite

The lithified sedimentary rock formed from radiolarian ooze.
Found on http://www.encyclo.co.uk/local/22392
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