Gneiss Definition
Gneiss 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 0
From the Middle High German verb gneist (to spark; so called because the rock glitters) 0
Durable Rock, Hard Rock 0
Coarse Grained Rock, Medium Grained Rock, Opaque Rock 0
Define Gneiss
Gneiss is one of the important type of rocks. If we have to define Gneiss in general, Gneiss 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. Gneiss comes under . All Metamorphic Rocks have similar properties and formation process. Along with Gneiss Definition, know more about the History of Gneiss, Etymology of Gneiss in next sections.