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Mafic, igneous rocks
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What type of rock contains high-density minerals such as olivine?
Ultramafic rocks, such as peridotite, are known to contain high-density minerals like olivine. These rocks form deep within the Earth's mantle and often have a coarse-grained texture due to their slow cooling process. Olivine is a common mineral found in ultramafic rocks due to its high melting point and stability under high-pressure conditions.
What is usually a characteristic of igneous rocks with a high density?
Igneous rocks with a high density are typically composed of minerals like olivine, pyroxene, and magnetite, which have high density. These rocks often form from magma that cools and solidifies slowly beneath the Earth's surface, allowing heavy minerals to settle and accumulate.
How many members of olivine group of minerals with details?
four common members of olivine family that is 1) FORSTERITE ((Mg) 2SiO4.2) fayalite(Fe) 2SiO43)olivineMn SiO44) tephorite( Mn2SiO4)
Some minerals with closely packed atom structure have a high what?
Some minerals with closely packed atom structure have a high density.
What elements makes up most of the mantle?
The mantle is mainly composed of silicate minerals rich in iron and magnesium, such as olivine, pyroxene, and garnet. These minerals form the majority of Earth's mantle due to their high abundance and density. Additionally, the mantle also contains smaller amounts of other elements like aluminum, calcium, and sodium.
What type of rock contains high-density minerals such as olivine?
Ultramafic rocks, such as peridotite, are known to contain high-density minerals like olivine. These rocks form deep within the Earth's mantle and often have a coarse-grained texture due to their slow cooling process. Olivine is a common mineral found in ultramafic rocks due to its high melting point and stability under high-pressure conditions.
What is usually a characteristic of igneous rocks with a high density?
Igneous rocks with a high density are typically composed of minerals like olivine, pyroxene, and magnetite, which have high density. These rocks often form from magma that cools and solidifies slowly beneath the Earth's surface, allowing heavy minerals to settle and accumulate.
How many members of olivine group of minerals with details?
four common members of olivine family that is 1) FORSTERITE ((Mg) 2SiO4.2) fayalite(Fe) 2SiO43)olivineMn SiO44) tephorite( Mn2SiO4)
What minerals are found in the asthenosphere?
The minerals found in the asthenosphere are primarily olivine, pyroxene, and garnet. These minerals have high melting points and are able to withstand the high temperatures and pressures present in the asthenosphere.
Some minerals with closely packed atom structure have a high what?
Some minerals with closely packed atom structure have a high density.
What elements makes up most of the mantle?
The mantle is mainly composed of silicate minerals rich in iron and magnesium, such as olivine, pyroxene, and garnet. These minerals form the majority of Earth's mantle due to their high abundance and density. Additionally, the mantle also contains smaller amounts of other elements like aluminum, calcium, and sodium.
Peridotite is composed almost entirely of dark silicate minerals.?
Peridotite is a coarse-grained, dense igneous rock composed mainly of olivine and pyroxene minerals. It is typically green in color due to the high concentration of olivine. Peridotite is commonly found in the Earth's upper mantle and is important in the formation of oceanic lithosphere.
What are three most useful properties of identification for olivine?
Olivine has a distinctive green color, making it easy to identify visually. It has a high hardness of 6.5-7 on the Mohs scale, aiding in its differentiation from other minerals. Olivine often occurs in tabular or elongate crystal shapes, which can help distinguish it from similar minerals.
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.
Olivine and pyroxene are commonly found in igneous rocks that are?
Olivine and pyroxene are commonly found in igneous rocks that are mafic in composition. These minerals indicate that the rock formed from magma with a higher iron and magnesium content. Mafic igneous rocks tend to be dark in color and have higher densities compared to felsic rocks.
What is ferromagnesian rocks?
ferromagnesian rocks are dark coloured rocks with high melting point and high specific gravity. they are basic rocks that consists of the elements like iron and magnessium, and are made up of mostly the olivine and pyroxene minerals. ferromagnesian rocks are formed from the earths interior espesially within the mantle. they include gabbro, basalt and peridotite.
What property is common to most dark colored igneous rocks?
Most dark-colored igneous rocks have a high density.
