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n. A banded or foliated metamorphic rock, usually of the same composition as granite.

n. A common and widely-distributed metamorphic rock having bands or veins, but not schistose.

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 hornblendic gneiss or syenitic gneiss. Similar varieties of related rocks are also called gneiss.

n. A rock which consists essentially of the same mineral elements as granite, namely orthoclase, quartz, and mica, but in which there is a more or less distinctly foliated arrangement of the constituent minerals, and especially of the mica.

n. a laminated metamorphic rock similar to granite

"The stratified gneiss, which is the underlying rock of much of this part of the country, dips toward the centre of the continent, but the strata are often so much elevated as to appear nearly on their edges."

metamorphic rock   

hercynian gneiss    lewisian gneiss    fundamental gneiss    bojan gneiss   

hornblendic gneiss    syenitic gneiss   

Brice    Bryce    Grice    Nice    Price    Rice    Weiss    advice    bice    concise   

sienite    basalt    shale    syenite    schist    freestone    augite    schistus    trachyte    breccia