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
   the aphanitic equivalent of granite.
   Found on http://www.cst.cmich.edu/users/dietr1rv/
   
   
4. rhyolite
   [n] - very acid volcanic rock
   Found on http://www.webdictionary.co.uk/definitio
   
   
5. 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
   
   
6. 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
   
   
7. rhyolite
   noun very acid volcanic rock
   Found on http://wordnetweb.princeton.edu/perl/web
   
   
8. Rhyolite
   • (n.) A quartzose trachyte, an igneous rock often showing a fluidal structure.
   Found on http://thinkexist.com/dictionary/meaning
   
   
9. 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
   
   
10. 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
    
    
11. 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
    
    
12. 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
    
    
13. Rhyolite
    Rhyolite is a fine grained extrusive igneous rock similar to granite. Rhyolite forms from particularly viscous molten lava and is grey, brown or reddish in colour, darkening with age. Rhyolite is essentially composed of feldspar, mica and quartz with numerous accessory minerals present.
    Found on http://www.probertencyclopaedia.com/brow
    
    
14. rhyolite
    Igneous rock, the fine-grained volcanic (extrusive) equivalent of granite
    Found on http://www.talktalk.co.uk/reference/ency
    
    
15. Rhyolite
    Volcanic rock (or lava) that characteristically is light in color, contains 69 percent silica or more, and is rich in potassium and sodium.
    Found on http://midju.tripod.com/glossary.html
    
    
16. Rhyolite
    A type of highly viscous magma with high silica content; it is found as pumice (in airfall deposits or ignimbrites), lava or obsidian. Rhyolite is also the name given to the volcanic rock formed from rhyolitic magma.
    Found on http://www.geonet.org.nz/volcano/glossar
    
    
17. rhyolite
    rhyolite lava erupts at 700 to 850°C and contains a silica content of over 68 percent; it can also include the minerals quartz, feldspar, and biotite, which harden with a glasslike texture
    Found on http://www.pbs.org/wgbh/nova/volcano/glo
    
    
18. Rhyolite
    Volcanic rock (or lava) that characteristically is light in color, contains 69% silica or more, and is rich in potassium and sodium.
    Found on http://volcano.oregonstate.edu/education
    
    
19. 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 (silica-rich) composition (typically > 69% SiO₂ &mdash; see the TAS classificat...
    Found on http://en.wikipedia.org/wiki/Rhyolite