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What is the description of the grain pattern of gneiss?
banded
What is Grain size of metamorphic rock?
It varies some metamorphic rocks are fine grained (eg slate) and others have very large crystals (eg an augen gneiss).
What is the grain pattern of gneiss look like?
It looks like rows of beads.
Is Gneiss a sedimentary metamorphic or igneous rock?
Gneiss is a metamorphic rock that forms from the recrystallization of pre-existing rocks under high temperature and pressure conditions. It is characterized by its banded texture and coarser grain size compared to other types of metamorphic rocks.
Which property of the gneiss sample prevented it from weathering?
The property of foliation in gneiss, caused by its alternating layers of minerals, makes it resistant to weathering. This foliation gives gneiss a strong and cohesive structure, preventing the rock from easily breaking down in response to weathering processes.
What are some features of the gneiss rock?
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
What structure developes into pollen grain?
Microspore
What rocks have foliated structure?
"Foliated" rocks are usually metamorphic rocks like phyllite, slate, schist, and gneiss.
What geologic process change granite igneous rock into gneiss metamorphic rock?
Granite can be changed into gneiss through the process of metamorphism, where heat and pressure alter the mineral structure of the rock. This process causes the minerals in the granite to recrystallize, forming distinct banding and foliation characteristic of gneiss. The original minerals in the granite are reorganized into new minerals such as mica, quartz, and feldspar, giving gneiss its unique appearance.
Is a grain of salt and extended structure?
No, a grain of salt is a small crystalline particle made of sodium chloride, while an extended structure refers to a larger arrangement of atoms or molecules extending in space. A grain of salt does not have an extended structure as it is a single crystalline unit at the atomic level.
What is foliated structure?
In geology, a foliated structure refers to a rock or mineral that is composed of thin easily separable layers. Examples of foliated rocks are gneiss, phyllite, schist and slate.
What group is gneiss in?
A Gneiss is a Metamorphic rock
