Look up: gneiss

1. gneiss
   a roughly foliated or banded metamorphic rock consisting largely of granular minerals with its platy and rodlike minerals defining the foliation; many gneisses are of granitic composition.
   Found on http://www.cst.cmich.edu/users/dietr1rv/
   
   
2. Gneiss
   Metamorphic rock, showing distinct banding of light and dark minerals. Usually made of feldspars, micas and hornblende.
   Found on http://www.geologyrocks.co.uk/glossary/l
   
   
3. gneiss
   [n] - a laminated metamorphic rock similar to granite
   Found on http://www.webdictionary.co.uk/definitio
   
   
4. Gneiss
   This is a type of metamorphic rock. In the Knockan Crag area it is known as Lewisian gneiss after Lewis in the Outer Hebrides, as the island is almost entirely made of this old hard rock. These Lewisian gneisses are some of the oldest rocks in the World; they have been aged at between 3200 million a...
   Found on http://www.knockan-crag.co.uk/glossary.h
   
   
5. Gneiss
   Generally a coarse grained banded crystalline metamorphic rock which has been subject to high temperatures and pressures.
   Found on http://www.digitalstroud.co.uk/glossary.
   
   
6. GNEISS
   metamorphic rock,of the same composition as granite but the minerals arranged in massive bands or layers Category: The cosmos
   Found on http://www.mijnwoordenboek.nl/definition
   
   
7. Gneiss
   Gneiss (nīs) noun [ G.] (Geol.) A crystalline rock, consisting, like granite, of quartz, feldspar, and mica, but having these materials, especially the mica, arranged in planes, so that it breaks rather easily into coarse slabs or flags. Hornb...
   Found on http://www.encyclo.co.uk/webster/G/39
   
   
8. gneiss
   <geology> A crystalline rock, consisting, like granite, of quartz, feldspar, and mica, but having these materials, especially the mica, arranged in planes, so that it breaks rather easily into coarse slabs or flags. ... Hornblende sometimes takes the place of the mica, and it is then called ho...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
9. Gneiss
   • (n.) A crystalline rock, consisting, like granite, of quartz, feldspar, and mica, but having these materials, especially the mica, arranged in planes, so that it breaks rather easily into coarse slabs or flags. Hornblende sometimes takes the place of the mica, and it is then called hornblendi...
   Found on http://thinkexist.com/dictionary/meaning
   
   
10. gneiss
    metamorphic rock that has a distinct banding, which is apparent in hand specimen or on a microscopic scale. Gneiss usually is distinguished from ... [9 related articles]
    Found on http://www.britannica.com/eb/a-z/g/40
    
    
11. Gneiss
    A metamorphosed coarse grained igneous rock. In this rock you get the recrystallization of quartz, feldspars, micas and amphiboles into bands.
    Found on http://www.physicalgeography.net/physgeo
    
    
12. gneiss
    gneiss (nīs) , coarse-grained, imperfectly foliated, or layered, metamorphic rock. Gneiss is characterized by alternating light and dark bands differing in mineral composition and having coarser grains than those of schist. The light bands of gneiss are generally composed of quartz and feldspa...
    Found on http://www.infoplease.com/ce6/sci/A08210
    
    
13. Gneiss
    Gneiss refers to a crystalline rock, consisting, like granite, of quartz, feldspar, and mica, but having these materials, especially the mica, arranged in planes, so that it breaks rather easily into coarse slabs or flags. Hornblende sometimes takes the place of the mica, and it is then called hornb...
    Found on http://www.probertencyclopaedia.com/brow
    
    
14. gneiss
    Coarse-grained metamorphic rock, formed under conditions of high temperature and pressure, and often occurring in association with schists and granites. It has a foliated, or layered, structure consisting of thin bands of micas and/or amphiboles dark in colour alternating with bands of granular quartz and feldspar that are light in colour. ...
    Found on http://www.talktalk.co.uk/reference/ency