Which minerals are commonly found in igneous rocks? Check all that apply.
halite
feldspar
gypsum
mica
quartz
Answers
The composition of magma is limited to the eight common elements of the earth's crust. These elements combine within a melt to form silicate minerals, the most common minerals of igneous rocks. These silicate minerals include feldspars (plagioclase feldspar, potassium feldspar), quartz, micas (muscovite, biotite), pyroxenes (augite), amphiboles (hornblende), and olivine. These minerals make up over 95% of the volume of the common igneous rocks, making igneous rocks easy to identify.
Answer:
Amphiboles, mica, feldspar, quartz, feldspathoids, olivines, and pyroxenes are among the minerals found in igneous rocks.
Explanation:
One of the three primary forms of rock are igneous or magmatic rocks, the other two being sedimentary and metamorphic. When lava or magma cools and solidifies, igneous rocks are created.
There are several different geological environments where igneous rocks can be found, including shields, platforms, orogens, basins, massive igneous provinces, extended crust, and oceanic crust.
In terms of volume, the upper 16 km (9.9 mi) of the Earth's crust is composed of 90–95 percent igneous and metamorphic rocks. On Earth today, igneous rocks make up 15% of the land. Igneous rock makes up the majority of the marine crust of the Planet.
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