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True or False Olivine and quartz commonly crystallize together from mafic or basaltic magmas?
false.
SiO2 + CaMg(CaCO3)2 -> MgSiO4 + CaCO3 + CO2 (not balanced)
Quartz + Dolomite -> Forsterite +Calcite + excess CO2 that is released as gas
Forsterite is a type of olivine. Olivine's chemical formula is (Mg,Fe)SiO4, with the Mg as forsterite and the Fe as fayelite.
Oceanic crust is rick in basalt and gabbro and these rocks have a very low quartz content or are void of it. Continental crust contains a large amount of granitic rocks from which quartz is found in most frequently.
Olivine usually forms in very hydrous situations where there is water involved, and comes from oceanic crust usually.
What else can I help you with?
What would be one of the first minerals to crystallize from liquid rock in a mafic igneous sill?
One of the first minerals to crystallize from liquid rock in a mafic igneous sill would likely be olivine. Olivine has a high melting temperature and tends to crystallize early in the cooling process due to its simple mineral structure.
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.
Are Olivine and quartz commonly found together in the same rock?
Yes, olivine and quartz are not commonly found together in the same rock. Olivine typically forms in mafic and ultramafic rocks like basalt and peridotite, whereas quartz is common in felsic rocks like granite. The two minerals have different chemical compositions and are usually associated with different rock types.
Which minerals crystallize early in Bowen's reaction series?
Minerals like olivine and pyroxene crystallize early in Bowen's reaction series. These minerals form at high temperatures as magma cools and solidify first due to their higher melting points compared to other minerals in the series.
Basaltic magma would form what color of igneous rocks?
baslt
What is the first mineral to crystalize out of a hot basaltic magma?
Olivine
Which ferromagnesian minerals and which of the feldspar's would be the first minerals to crystallize?
The first ferromagnesian mineral to crystallize is usually olivine, followed by pyroxene and amphibole. Among the feldspars, plagioclase feldspar is usually the first to crystallize, followed by potassium feldspar.
What would be one of the first minerals to crystallize from liquid rock in a mafic igneous sill?
One of the first minerals to crystallize from liquid rock in a mafic igneous sill would likely be olivine. Olivine has a high melting temperature and tends to crystallize early in the cooling process due to its simple mineral structure.
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.
Why are olivine crystals sometimes found in basaltic rock even though olivine is more dense than the basaltic lava that hardens?
Magma moves, it erupts out of volcanoes, and this can cause substances of different density to mix together. If these substances remained liquid, they would eventually settle out into layers by density, but if the rock hardens before this happens, then you have permanent mixing.
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.
What is in a shield volcanoes magma?
inside a shield volcano is a hot surface of mamga
What are types of rocks and minerals found in the island of Hawaii?
Hawaii is formed primarily of basaltic rocks, including basalt and other volcanic rocks. Minerals commonly found in these rocks include olivine, feldspar, and pyroxene. The unique geology of Hawaii also gives rise to minerals such as peridot, a gemstone found in basaltic lava rocks.
What is the first minerals to form when magma cools that are rich in iron calcium and magnesium?
The first minerals to form when magma cools and is rich in iron, calcium, and magnesium are typically olivine, pyroxene, and/or plagioclase feldspar. These minerals have high melting points and tend to crystallize early as the magma cools.
Are Olivine and quartz commonly found together in the same rock?
Yes, olivine and quartz are not commonly found together in the same rock. Olivine typically forms in mafic and ultramafic rocks like basalt and peridotite, whereas quartz is common in felsic rocks like granite. The two minerals have different chemical compositions and are usually associated with different rock types.
Which mineral crystallize first from magma?
The mineral that crystallizes first from magma is olivine. Olivine has a relatively high melting temperature compared to other minerals, so it is among the first to solidify as magma cools and begins to solidify.
Which minerals crystallize early in Bowen's reaction series?
Minerals like olivine and pyroxene crystallize early in Bowen's reaction series. These minerals form at high temperatures as magma cools and solidify first due to their higher melting points compared to other minerals in the series.
