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Rhyolite

rhyolite

(Science: geology) A quartzose trachyte, an igneous rock often showing a fluidal structure.

Origin: Gr. To flow.


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The Fiber Disease

... at relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, and basalt. Opal is one of the mineraloids that can form or replace fossils. The resulting fossils, though not of any extra scientific interest, ...

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by codon blue
Mon Dec 11, 2006 12:46 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5480929


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