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extrusive and intrusive
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plutonic and volcanic
Jimmy Mueller
Wiki User
∙ 12y agoThe two major properties used to classify igneous rock are:
Crystal Size/Texture--Small crystals are indicative of rapid above ground cooling of lava into what is classified as extrusive igneous rock such as basalt, obsidian, or rhyolite. Large crystals are indicative of slow cooling magma underground, resulting in what is called intrusive igneous rock such as granite, gabbro, and diorite.
Chemistry or Mineralogy--Igneous rock is also classified by its elemental composition. Igneous rock, whether intrusive or extrusive, that is high in silica is classified as felsic.Igneous rock that is low in silica, but higher in heavier elements like iron, is classified as mafic. Rocks falling between the two are classified as intermediate.
Wiki User
∙ 14y agothey could be different by having different sediments have settled into them
Wiki User
∙ 10y agoplease tell me
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Can metaporhic rocks form in to igneous rocks but not to sedementry rocks?
it can form into both, they can all form into one another
Explain how igneous rocks form?
Igneous rocks are one of the 3 main type of rocks, the others being sedimentary and metamorphic rocks. Igneous rocks are formed from the cooling of lava and magma. There are over 700 kinds of igneous rocks, and most are found beneath the surface of the Earth's crust.
Are basaltic igneous rocks high in iron and magnesium?
The dark colored igneous rocks that are rich in calcium and magnesium are called mafic igneous rocks. Basalt is one example of these. Their relative density is higher than three.
One of two ways that sedimentary and igneous rocks can be changed into metamorphic rocks?
sediment
What is the type of Igneous rock that forms underground?
Igneous, Metamorphic, and Sedimentary rocks
How rocks differ from one another?
Rocks differ due to texture, hardness, color and shape.
Can metaporhic rocks form in to igneous rocks but not to sedementry rocks?
it can form into both, they can all form into one another
What three things are used to classify igneous rocks?
Color and texture is one way to classify igneous rocks. Another way to do this is modal classification and normative classification.
How do rock differ from one another?
Rocks differ due to texture, hardness, color and shape.
What are the six minerals that make up igneous rocks?
Olivine, Pyroxene, Amphibole, Biotite, Muscovite, Potassium Feldspar, Quartz, Plagioclase are the minerals that make up the Igneous Rocks!:)another one is mica
What are three groups of rock called?
Igneous, Sedimentary, Metamorphic. Igneous rocks are made of solidified magma. Sedimentary rocks are those that are made by the weathering or erosion of soil of Earth. Metamorphic rocks are when rocks are changed from one material to another; new minerals are created.
Are there igneous rocks in Georgia?
Stone Mountain is one huge igneous rock.
What are 3 ways igneous rocks are used and which one?
the 3 ways igneous rocks are used are in schools,houses and roads. this is because they are hard,igneous rocks make useful road building materials
Explain how igneous rocks form?
Igneous rocks are one of the 3 main type of rocks, the others being sedimentary and metamorphic rocks. Igneous rocks are formed from the cooling of lava and magma. There are over 700 kinds of igneous rocks, and most are found beneath the surface of the Earth's crust.
What is one way igneous sedimentary and metamorphic rocks are different?
igneous rocks are made of lava that cools and hardens and metamorphic rocks are madeby heat and pressure.
Is granite in the igneous family?
Yes. Granite is one of the most common igneous rocks.
How are metmorphic rocks formed?
Metamorphic rocks are rocks which have changed from one form to another due to intense heat or pressure. Any rock (sedimentary, metamorphic, and igneous) can be changed into a metamorphic rock.
