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The word "granite" comes from the Latin "granum", meaning "grain" in reference to its course granular structure.
Granite is normally a light-coloured igneous rock with grains large enough to be visible with the naked eye. It is formed by the slow crystallization of magma below Earth's surface. Granite is composed mainly of quartz and feldspar with smaller amounts of mica, amphiboles and other minerals found in the area of its origin.
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∙ 8y ago
Wiki User
∙ 14y agoThis question is not answerable, because crystalline structure is a property of solid pure chemical substances; the chemical substances that make up rocks are called minerals. So only minerals have definitive crystal properties. Rocks like gneiss are mixtures of different minerals. So there is no such thing as a "gneiss crystal".
Gneiss is a metamorphic rock whose minerals are organized into characteristic bands.
Wiki User
∙ 14y agoA Gneiss rock is a rock that is gray to white in color and is usually coarse textured with parallel bands of minerals.
Wiki User
∙ 14y agoGneiss is a high grade metamorphic rock whose characteristic banding of light and dark minerals is called "gneissic" layering.
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∙ 11y agoThey have feldspar, mica, and quartz minerals in them. They are made when the Sedimentary rocks are under extreme heat and pressure. That's when they Metamorphose.
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∙ 10y agogneiss is a metamorphic rock
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∙ 11y agoFoliated
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Is schist an intrusive or extrusive rock?
Neither, Igneous rock is either intrusive or extrusive. Thats what intrusive and extrusive is... A igneous rock.
Why is the rock hopper penguin called the rock hopper penguin?
I think it's because where they live the surface is rocky and when they migrate they jump from rock to rock.
What is the time line of a rock cycle?
The time line of a rock cycle starts with igneous rocks. Next comes metamorphic rock, and then comes sedimentary rock.
What is the true age of a rock or fossil?
The method used will be determined by the rock type, but the age of a rock will be determined by a determination of the amount of decay of a radioactive isotope, either contained in the rock, or in a geologic layer of rock coinciding with a fossil.
A solid material made up of one or more minerals?
Sorry we really do not no what this is... and this websie does not help at all go to another one please
Is an gneiss rock sedimentary rock?
No, gneiss is metamorphic.
Is gneiss an example of igneous rock?
No. Gneiss is a metamorphic rock.
What type of rock is an example of Gneiss?
Gneiss is an example of a metamorphic rock.
What rock does gneiss come from?
Gneiss may come from either granite or schist.
What group is gneiss in?
A Gneiss is a Metamorphic rock
How is gneiss similar to granite?
Granite is an igneous rock and gneiss is a metamorphic rock.
Is Gneiss a sedimentary metamorphic or igneous rock?
Gneiss is a banded metamorphic rock.
What is the origin of a gneiss rock?
Gneiss is a metamorphic rock and its parent rock (protolith) could be a granite or schist.
What is gneiss mineral group?
Gneiss is a rock, not a mineral.
What is a sentence for gneiss?
I am trying to find out what the other two types of rock besides gneiss form the Matterhorn. Gneiss is a metamorphic rock. That's a nice piece of gneiss!
What is the color of a Gneiss rock?
A Gneiss rock is somewhat dark-greenish, depending on when it was made.
What type of crystals does gneiss rock have?
Gneiss usually consists of visible crystals of aligned mineral assemblages.
