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Geologists classify rocks into three groups. The first group are igneous rocks, the second are metamorphic rocks and the third are sedimentary rocks.
Wiki User
∙ 9y ago
Wiki User
∙ 11y agoRock are classified on there chemical property & physical property like structure (form), texture, stick, shine, color, hardness, clevage, fracture, specific gravity etc.
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How do geologists classify igneous rock?
Geologists classify rocks by where they are formed; above ground or under ground
How can a rock composition help geologists to classify the rock?
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How do geologists classify metamorphic rock?
Geologists classify metamorphic rocks by the arrangements of the grains that make up the rocks.
Do geologists classify metamorphic rocks by the arrangement of grains making up the rock?
Yes.
How can a rock's composition help geologists to classify the rocks?
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How do geologists classify rock samples from the Eath's crust?
By their provenance, appearance, texture and mineralogy.
How does a geologist know that rock layers are undisturbed.?
When a rock is disturbed, it usually contains one of the following abnormalities:SlantingBendingFoldingCrackingMetamorphismor Nonconformities.If a rock layer contains none of these, then geologists classify it as undisturbed.
How do geologist classify a rock?
Geologists classify rocks by looking at their chemical and mineralogical composition then at the the size and shape of their component minerals then at any texture, pattern or grain that the rocks may display. They also classify them in relation to how they were formed.
How does a geologist know that layers are undisturbed?
When a rock is disturbed, it usually contains one of the following abnormalities:SlantingBendingFoldingCrackingMetamorphismor Nonconformities.If a rock layer contains none of these, then geologists classify it as undisturbed.
Who studied rock?
Geologists study the rocks that compose the earth or other terrestrial planets. Mineralogists classify and name types of lava. Stone cutters study granite , which is an igneous rock.
How do geologists classify a volcano made of these materials?
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Describe granite using the three characteristics geologists use to classify igneous rocks?
Granite is a felsic, coarse grained, intrusive igneous rock.
