What are some features of the gneiss rock?

Answer 1

The foliations of gneiss make beautiful swirls and patterns in polished countertops and building slabs. Many so-called granite countertops are actually gneiss. Gneiss makes a gneiss [sic] countertop! If by useful you mean info on gneiss, it is basically a coarse-grained, foliated, high grade metamorphic rock. Gneiss forms during high grade, regional metamorphism, and can form from amny different parent rocks including shale and igneous rocks. Most gniesses are often granitic in composition and one variety forms from the metaporphism of granite. Gneisses are also named for the dominant material such as biotite gneiss or garnet gniess.

- David Miller

Answer 2

Gneiss is a type of metamorphic rock that is composed of layers of previous igneous and/or sedimentary rock formations. The name "Gneiss" is derived from a German word meaning "to spark". This is because gneiss glitters due to microscopic flakes of mica incorporated into its grain

structure.

Answer 3

The main characteristic of gneiss is gneissic texture, foliations (banding) caused by the parallel alignment of constituent minerals as a result of heat and pressure.

Answer 4

it is basically a coarse-grained, foliated, high grade metamorphic rock.