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they are found in approximetily 90 %in the earth crust
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∙ 12y ago
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Is silica intrusive or extrusive?
The terms intrusive and extrusive apply to the formation of igneous rocks. Silica is a chemical component of a wide variety of minerals found in many types of igneous, metamorphic, and sedimentary rock. All igneous rocks, both intrusive and extrusive, contain silica.
What are three main rocks found on this planet?
The three main rocks found on this planet are sedimentary, igneous, and metamorphic.
What are the similarities between sedimentary and igneous rocks?
Both types are part of the rock cycle. Both rocks contain various minerals. Both are solid. Both are naturally occurring. Both are found in the crust.
What rocks can pyrite be found in?
Pyrite could be found in any of the three rock types (sedimentary, igneous, metamorphic).
What type of rocks are found in Belize?
igneous methamophic sedimentary
What are the common minerals in ignous rock?
Igneous Rocks have many different mineral compositions.---- * Felsic-High in silica,low density,light colored* Mafic-less silica than felsic,dark colored,higher density than felsic * Ultramafic-lowest content of silica
Is granite a carbonate rock?
Calcite can be found in some types of granite. Granite is normally composed of the minerals feldspar, quartz, and biotite.
Which pair of minerals is most likely to be found in felsic rock?
the most common is granite and rhyolite
What is the silicate mineral that is found in the greatest variety of igneous rocks?
Quartz is one of the most abundant silicate minerals found in igneous rock.
Which minerals are found in the igneous rocks gabbro and basalt?
Olivine and Pyroxene
Why is there no quartz formed in magma after it has cooled?
If you can't see its crystals without a microscope it's because the rock solidified too rapidly for visible crystals to form. Whether or not quartz is found in cooled magma/lava is basically a product of the chemical makeup of the molten rock. Quartz is the predominate silicate mineral in felsic igneous rocks, but may be non-existent in mafic igneous rocks. If you are referring to the fact that most felsic igneous rocks containing quartz do not exhibit well formed quartz crystals, it is because quartz is one of the last minerals to crystallize from magma, and solidifies in the voids between other minerals that have already crystallized.
Is usually found near a volcano?
Igneous rocks and volcanic minerals are usually found near a volcano.
What is the most radioactive thing?
Thorium, an element rarely found in some minerals.
Is magnesium an igneous rock?
No. Magnesium is not a rock; it is a metallic element. It is present in some of the minerals found in igneous rocks. It does not occur naturally in its elemental form.
When Minerals that crystallize at high temperatures as a result of contact metamorphism tend to be found near?
Igneous Intrusions
In what type of igneous rock most of the time ore minerals are found?
Vesicular basalt or pegmatite veins.
What the grains found in igneous rock?
Grains found in igneous rock are minerals that solidified from a molten state. They can be coarse or fine, depending on the cooling rate of the magma. Common minerals found as grains in igneous rock include quartz, feldspar, mica, and olivine. The size, shape, and arrangement of these grains can provide clues about the cooling history and composition of the rock.
