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Because both crystallize at similar temperatures and pressures according to Bowen's Reaction Series.
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What is plagioclase feldspar with quartz and olivine?
Plagioclase feldspar is a common mineral in igneous rocks, while quartz is a mineral often found in a variety of rocks. Olivine is a green mineral commonly found in mafic igneous rocks. When all three minerals are present in a rock, it typically indicates a mafic igneous rock such as basalt or gabbro.
Why are olivine and calcium rich plagioclase often found together in igneous rocks?
Olivine and calcium-rich plagioclase are often found together in igneous rocks because they have similar crystallization temperatures and are both common minerals in mafic igneous rocks. They are compatible minerals that can crystallize simultaneously from a cooling magma, leading to their coexistence in the same rock.
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.
Which minerals are found in the igneous rocks gabbro and basalt?
Gabbro and basalt are both mafic igneous rocks and contain minerals such as pyroxene, plagioclase feldspar, and olivine. Gabbro typically has a coarser grain size compared to basalt, which has a fine-grained texture due to its rapid cooling at the Earth's surface.
Is peridot a igneous rock or is it something else?
Peridot is a gemstone composed of the mineral olivine. Olivine is a common mineral found in igneous rocks such as basalt and peridotite. So, while peridot itself is not an igneous rock, it is closely associated with igneous rocks due to its mineral composition.
Which minerals are found in basalt and gabbro?
Basalt contains minerals such as plagioclase feldspar, pyroxene, and olivine. Gabbro also contains plagioclase feldspar and pyroxene, but generally has a coarser texture due to slower cooling rates underground.
What type of composition does an igneous rock have that contains mostly plagioclase feldspar and about 30 percent dark silicate minerals?
The igneous rock with mostly plagioclase feldspar and about 30 percent dark silicate minerals is likely a basalt. Basalt is a fine-grained extrusive rock that is commonly found in oceanic crust and volcanic islands. The dark silicate minerals in basalt are typically pyroxene and olivine.
Which mineral can be found in all samples of rhyolite and andesiteh igneous rock is dark colored cooled rapidly on Earth's surface and is composed mainly of plagioclase feldspar olivine and pyroxene?
The mineral that can be found in all samples of rhyolite and andesite is typically plagioclase feldspar, which is often present in varying compositions. Rhyolite and andesite are both volcanic rocks that cool relatively quickly on the Earth's surface, leading to their fine-grained textures. While olivine and pyroxene can also be present in these rocks, plagioclase feldspar is the primary mineral characteristic of both rhyolite and andesite.
Is olivine an igneous rock?
Olivine is not an igneous rock itself; rather, it is a mineral commonly found in igneous rocks. It is a silicate mineral composed of magnesium and iron and is typically found in mafic and ultramafic rocks such as basalt and peridotite. Olivine can crystallize from magma and is often one of the first minerals to form during the cooling of molten rock.
Is plagioclase a mineral?
Yes, plagioclase is a group of minerals within the feldspar family. It is a common mineral found in igneous rocks such as granite and basalt.
Would you expect to find plagioclase feldspar or biotite in a greater variety of igneous rocks?
You would expect to find plagioclase feldspar in a greater variety of igneous rocks compared to biotite. Plagioclase feldspar is a more common mineral and is found in both mafic and felsic rocks, while biotite is typically found in intermediate to felsic rocks.
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
