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Why are olivine and calcium-rich plagioclase often found together in igneous rocks?
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∙ 7y ago
Because both crystallize at similar temperatures and pressures according to Bowen's Reaction Series.
Alvah Stokes
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Which igneous rock is dark colored cooled rapidly on earths surface and is composed mainly of plagioclase feldspar olivine and pyroxene?
scoria
How do you classify igneous rocks from other types of rock?
Igneous rocks are identified by first looking at the color index. Felsic igneous rocks contain mostly potassium feldspar. Intermediate igneous rocks contain mostly plagioclase feldspar. Mafic igneous rocks contain pyroxene, olivine, and plagioclase feldspar. Ultra mafic igneous rocks contain mostly olivine. Then igneous rocks are identified based on texture. For example, the texture of igneous rocks can be aphanitic, pegmatitic, phaneritic, glassy, vesicular, etc.
What temperature do olivine and calcium rich plagioclase feldspar crystallize from magma?
2000
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
Which the following is a fine grained light colored extrusive igneous rock?
fine grained extrusive rocks can contain Potassium and Plagioclase Feldspar, Quartz, Biotite, Amphibole, Pyroxene and Olivine. these are all the choices for every igneous rocks
Why are olivine and calcium rich plagioclase often found together in igneous rocks?
Because both crystallize at similar temperatures and pressures according to Bowen's Reaction Series.
What greyish igneous rock contains plagioclase feldspar and small amounts of quartz and olivene?
None, you don't get quartz and olivine in the same igneous rock.
Which igneous rock is dark colored cooled rapidly on earths surface and is composed mainly of plagioclase feldspar olivine and pyroxene?
scoria
What does dolerite mean?
A dolerite occurs in dikes and sills. These are dark, medium-grained igneous rocks that are typically containing olivine, plagioclase, and pyroxene.
Which is a coarse-grained igneous rock composed of mainly pyroxene plagioclase feldspar and olivine?
Gabbro.
Does basalt have sodium in it?
No. Calcite is not an igneous mineral. Basalt primarily consists of pyroxines and plagioclase with some olivine.
How do you classify igneous rocks from other types of rock?
Igneous rocks are identified by first looking at the color index. Felsic igneous rocks contain mostly potassium feldspar. Intermediate igneous rocks contain mostly plagioclase feldspar. Mafic igneous rocks contain pyroxene, olivine, and plagioclase feldspar. Ultra mafic igneous rocks contain mostly olivine. Then igneous rocks are identified based on texture. For example, the texture of igneous rocks can be aphanitic, pegmatitic, phaneritic, glassy, vesicular, etc.
What is plagioclase feldspar with quartz and olivine?
Diorite
Why are olivine and calcium-Rich plagioclase often found in Igneous rocks?
Because both crystallize at similar temperatures and pressures according to Bowen's Reaction Series.
Which intrusive igneous rock could be composed of 60 percent pyroxene 25 percent plagioclase feldspar 10 percent olivine and 5 percent amphibole?
gabbro
What mineral does magma turn into when it cools?
Magma solidifies into a combination of minerals that are collectively called igneous rock. Minerals common in igneous rock are potassium feldspar, plagioclase feldspar, muscovite and biotite mica, quartz, hornblende, olivine, and magnetite.
What temperature do olivine and calcium rich plagioclase feldspar crystallize from magma?
2000
