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 op http://www.britannica.com/eb/a-z/g/40
    
    
11. 
    Gneiss
    Gneiss (s) is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks. ==Etymology== The etymology of the word "gneiss" is disputed. Some sources say it comes from the Midd...
    Found op http://en.wikipedia.org/wiki/Gneiss
    
    
12. 
    Gneiss
    A metamorphosed coarse grained igneous rock. In this rock you get the recrystallization of quartz, feldspars, micas and amphiboles into bands.
    Found op http://www.physicalgeography.net/physgeoglos/g.html
    
    
13. 
    gneiss
    Gneiss. Credit: Mineral Information Institute A course-grained banded or foliated metamorphic rock, in which the minerals are arranged in darker and lighter layers. The chief components are irregular, granular bands of quartz and feldspar alternating with thin undulating bands of micas and amph...
    Found op http://www.daviddarling.info/encyclopedia/G/gneiss.html
    
    
14. 
    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 op http://www.infoplease.com/ce6/sci/A0821075.html
    
    
15. 
    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 op http://www.probertencyclopaedia.com/browse/HG.HTM
    
    
16. 
    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 quar...
    Found op http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0015250.html
    
    
17. 
    gneiss
    igneous or sedimentary rocks that were subjected to metamorphic conditions such as high heat and pressure
    Found op http://www.njwildlifetrails.org/OutontheTrails/GlossaryofNaturerelatedTerms
    
    
18. 
    gneiss
    1) Banded metamorphic rock 2) Banded rock 3) Granitelike rock 4) Layered rock 5) Metamorphic rock 6) Pleasant-sounding rock? 7) Refers to a coarsely foliated metamorphic rock 8) Rock variety 9) Schist's cousin 10) Sparkly rock
    Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/gneiss/1
    
    

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