Look up: Rhyolite

1. 
   rhyolite
   Fine-grained extrusive igneous rock, commonly with phenocrysts of quartz and feldspar in a glassy groundmass.
   Found on http://www.solarviews.com/eng/terms.htm
   
   
2. 
   rhyolite
   Highly felsic igneous volcanic rock, typically light in color; rough volcanic equivalent of granite.
   Found on http://www.ucmp.berkeley.edu/glossary/gl
   
   
3. 
   Rhyolite
   Rhyolite is a fine grained igneous rock.
   Found on http://www.encyclo.co.uk/nol.php
   
   
4. 
   rhyolite
   the aphanitic equivalent of granite.
   Found on http://www.cst.cmich.edu/users/dietr1rv/
   
   
5. 
   rhyolite
   [n] - very acid volcanic rock
   Found on http://www.webdictionary.co.uk/definitio
   
   
6. 
   Rhyolite
   Rhy'o·lite noun [ Greek 'rei^n to flow + -lite .] (Min.) A quartzose trachyte, an igneous rock often showing a fluidal structure. -- Rhy`o*lit'ic , adjective
   Found on http://www.encyclo.co.uk/webster/R/78
   
   
7. 
   rhyolite
   <geology> A quartzose trachyte, an igneous rock often showing a fluidal structure. ... Origin: Gr. To flow. ... (23 Aug 1998) ...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
8. 
   rhyolite
   noun very acid volcanic rock
   Found on http://wordnet.princeton.edu/perl/webwn?
   
   
9. 
   Rhyolite
   `This page is about a volcanic rock. For the ghost town see Rhyolite, Nevada, and for the satellite system, see Rhyolite/Aquacade.` `Rhyolite` is an igneous, volcanic (extrusive) rock, of felsic (silicon-rich) composition (typically >69% SiO2 — see the TAS classification. It may have any texture from aphanitic to porphyritic. The mineral assemblage is usually quartz, alkali feldspar and plagioclase (in a ratio > 1:2 — see the ...
   Found on http://en.wikipedia.org/wiki/Rhyolite
   
   
10. 
    Rhyolite
    • (n.) A quartzose trachyte, an igneous rock often showing a fluidal structure.
    Found on http://thinkexist.com/dictionary/meaning
    
    
11. 
    Rhyolite
    (from the article `Death Valley`) ...sprang up from the late 19th to the early 20th century following gold, copper, and silver strikes in the area. Deserted when the mines were ...
    Found on http://www.britannica.com/eb/a-z/r/44
    
    
12. 
    rhyolite
    extrusive igneous rock that is the volcanic equivalent of granite. Most rhyolites are porphyritic, indicating that crystallization began prior to ... [4 related articles]
    Found on http://www.britannica.com/eb/a-z/r/44
    
    
13. 
    Rhyolite
    A fine grained extrusive igneous rock that is rich in quartz and potassium feldspar. Derived from felsic magma.
    Found on http://www.physicalgeography.net/physgeo
    
    
14. 
    rhyolite
    Flow banding in rhyolite lava from Mono-Inyo Craters volcanic chain, California (black bands composed of obsidian). Credit: U.S. Geological Survey A light-colored rock with silica (SiO₂) content greater than about 68 weight percent. Sodium and potassium oxides both can re...
    Found on http://www.daviddarling.info/encyclopedi
    
    
15. 
    rhyolite
    rhyolite, fine-grained light-colored acidic volcanic rock. Rhyolite is chemically the equivalent of granite, and is thus composed primarily of quartz and orthoclase feldspar with subordinate amounts of plagioclase feldspar, biotite mica, amphiboles, and pyroxenes. Rhyolite lava exhibits a typical ba...
    Found on http://www.infoplease.com/ce6/sci/A08417