gneiss

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gneiss

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

[German Gneis, probably alteration of Middle High German ganeist, spark (from its appearance), from Old High German gneista.]

gneiss′ic (nī′sĭk), gneiss′oid′ (nī′soid′), gneiss′ose′ (nī′sōs′) adj.

gneiss

(naɪs)
n
(Geological Science) any coarse-grained metamorphic rock that is banded and foliated: represents the last stage in the metamorphism of rocks before melting
[C18: from German Gneis, probably from Middle High German ganeist spark; related to Old Norse gneista to give off sparks]
ˈgneissic, ˈgneissoid, ˈgneissose, gneiˈssitic adj

gneiss

(naɪs)

n.
a metamorphic rock, generally made up of bands that differ in color and composition, some bands being rich in feldspar and quartz, others rich in hornblende or mica.
[1750–60; < German Gneis, ultimately derivative of Old High German gneisto spark]
gneiss′ic, gneiss′oid, adj.

gneiss

(nīs)
A type of metamorphic rock consisting of light-colored layers, usually of quartz and feldspar, alternating with dark-colored layers of other minerals. The layers are often folded into curves. See Table at rock.

gneiss

A coarse-grained metamorphic rock with minerals in wavy layers.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.gneiss - a laminated metamorphic rock similar to granite
metamorphic rock - rock altered by pressure and heat
Translations
rula
gnejs
gneiss
gneissi
gnajs
gnejs
gnejs

gneiss

[naɪs] Ngneis m

gneiss

nGneis m
References in periodicals archive ?
Turning inland after visiting the tiny church of St Clement in Rodel, built by the MacLeod clan in 1512, you enter the surreal moonscape of Harris's interior - a vista of ancient uninhabited outcrops of Lewisian gneiss rock, the palette of brown and grey broken only by a few wildflowers, small mountain lakes and sheep.
Larkfire is sourced on the Isle of Lewis where the water is held on the surface by 3-billion-yearold Lewisian gneiss rock, among the world's oldest.
Callanish Standing Stones This cross-shaped collection of Lewisian Gneiss stones are phenomenal.