Q:

What minerals make up granite?

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Quick Answer

Minerals that make up granite are quartz, potassic feldspars such as orthoclase and microcline, plagioclase, and mica. Minerals that are often found in granite but aren't necessary for it to be granite are apatite, pyrite, magnetite, zircon and tourmaline. Accidental minerals found in granite are muscovite mica, garnet and pyroxine.

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Full Answer

Granite is an intrusive, igneous rock. This means it was formed out of magma deep in the Earth and gradually, over millions of years, made its way to the surface. It is prized for being both beautiful and very tough and comes in a variety of colors such as white, light gray, pink, yellow and even violet.

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Related Questions

  • Q:

    What are the two most common silicate minerals?

    A:

    The two most common silicate minerals are orthoclase and plagioclase. Compared to orthoclase, plagioclase is more abundant in the Earth's crust. Plagioclase is more commonly found in igneous and metamorphic rocks while orthoclase is more common in sedimentary rocks and sand due to its capability of withstanding weather changes.

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  • Q:

    What minerals are used to make glass?

    A:

    Common minerals that are used in glass production include antimony, feldspar, lead, lithium, quartz, silica, sodium carbonate, tantalum, calcite, gypsum, muscovite mica and orthoclase. The principal ingredient of glass is sand, which is primarily composed of quartz or silica.

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  • Q:

    Is granite a rock or a mineral?

    A:

    Granite is a very hard igneous rock created from what was once liquid magma. It is found in the continental crust, especially in North America as part of Canadian Shield.

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  • Q:

    How many of the common minerals make up 90 percent of the Earth's crust?

    A:

    More than 90 percent of the mineral composition of the Earth's crust is composed of silicate minerals. These silicate minerals differ with each specific compound, as each compound is composed of different elements to form the types of rock that constitute the Earth's crust.

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