Q:

How much does granite weigh?

A:

Quick Answer

Granite weighs approximately 2.75 grams per cubic centimeter, which is 2,750 kilograms per cubic meter. It is composed of slightly less than three-fourths silicon dioxide and roughly one-seventh aluminum oxide. The rest consists of other oxides, such as potassium oxide.

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How much does granite weigh?
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Full Answer

Granite is slightly heavier than pure silica sand and quartz, which, as forms of silicon dioxide, weigh 2.648 grams per cubic centimeter. While it is roughly the same weight as most other igneous rocks, it weighs less than the 2.9 grams per cubic centimeter of basalt. Granite is not composed of exact proportions of minerals, and tens of thousands of granite types exist. The more quartz is in granite, the less it weighs; the other oxides, which naturally occur as the mica and feldspar in granite, weigh more.

The weight of granite makes it a concern for home use. Granite countertops are only, at most, 4 centimeters thick, and the cabinet underneath must be reinforced to support its weight. A counter entirely made of solid granite would need structural support or risk collapsing through the floor.

While some granites contain heavy, naturally occurring uranium, the 10 to 20 parts per million do not noticeably affect the overall weight of granite.

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Related Questions

  • Q:

    What is the texture of granite?

    A:

    Granite has a coarse to very coarse grained texture. It is typically granular and can be porphyritic with well-shaped large crystals of feldspar. Its structure contains cavities wherein well-formed crystals project.

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  • Q:

    What are granite and gabbro?

    A:

    Granite and gabbro are igneous rocks formed through the cooling and crystallization of magma in the Earth's crust. They are identified by their specific mineral content and composition.

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  • Q:

    What is granite used for?

    A:

    Granite is one of the strongest, most durable and attractive stones, making it versatile and favorable for various architectural and artistic applications. Granite stone is used in monuments, paving, bridges, buildings and several other exterior projects. In interior projects, polished granite tiles and slabs are used for stair treads, tile floors and countertops.

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  • Q:

    How is granite formed?

    A:

    Granite is an igneous rock that forms when a pocket of magma rises into the upper levels of the Earth's crust and slowly cools. Cooling slowly gives granite, which is composed mainly of feldspar and quartz, enough time to develop large crystals that make the stone very hard and strong. Some granite, known as gneiss, can form from sedimentary rock that has gone through a long metamorphosis.

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