Advertisement
Advertisement
gneiss
[ nahys ]
noun
- 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.
gneiss
/ ²Ô²¹Éª²õ /
noun
- any coarse-grained metamorphic rock that is banded and foliated: represents the last stage in the metamorphism of rocks before melting
gneiss
/ ²ÔÄ«²õ /
- A highly foliated, coarse-grained metamorphic rock consisting of light-colored layers, usually of quartz and feldspar, alternating with dark-colored layers of other minerals, usually hornblende and biotite. Individual grains are often visible between layers. Gneiss forms as the result of the regional metamorphism of igneous, sedimentary, or other metamorphic rocks.
Derived Forms
- ˈ²µ²Ô±ð¾±²õ²õ¾±³¦, adjective
Other ˜yÐÄvlog Forms
- ²µ²Ô±ð¾±²õ²õi³¦ adjective
˜yÐÄvlog History and Origins
Origin of gneiss1
˜yÐÄvlog History and Origins
Origin of gneiss1
Compare Meanings
How does gneiss compare to similar and commonly confused words? Explore the most common comparisons:
Example Sentences
The oldest rock with a reliable age—a gneiss from Canada—is 4.03 billion years old.
In front of me, a sheer wall of stippled gneiss.
The ridges are gneiss and schist; the valleys, marble, worn down through various glaciation events.
Stories, in that sly way, are his thing, and in his daily life he’s not averse to mussing around with geological terms like “hornfels†and “gneiss.â€
The dark, blocky cylinder appears to comprise a roughly fifty–fifty mix of ice and a metamorphic rock called gneiss, Talalay says.
Advertisement
Advertisement
Advertisement
Advertisement
Browse