Relative Density Of Granite Rock

Average density of 12 granite rocks by archimedes and ct.

Relative density of granite rock.

Relative density or specific gravity is the ratio of the density mass of a unit volume of a substance to the density of a given reference material. Granite ˈ ɡ r æ n ɪ t is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture. As specific gravity is just a comparison it can be applied across any units. Density of granite solid is equal to 2 691 kg m.

In imperial or us customary measurement system the density is equal to 168 pound per cubic foot lb ft or 1 555 ounce per cubic inch oz inch. This isn t as complex as you may think because water s density is 1 gram per cubic centimeter or 1 g cm 3. The term relative density is often preferred in. Specific gravity for liquids is nearly always measured with respect to water at its densest at 4 c or 39 2 f.

However knowing the average density of each rock allows us to extract information from the ct data about the distribution of density within each rock. Granites can be predominantly white pink or gray in color depending on their mineralogy the word granite comes from the latin granum a grain in reference to the coarse grained structure of such a completely crystalline rock. For example limestone 2 6 g cm 3 or less quartzite 2 7 g cm 3 and granite 2 7 2 8 g cm 3 are all common low density rocks. The densities of rocks and minerals are normally expressed as specific gravity which is the density of the rock relative to the density of water.

More than that granite is the signature rock of the planet earth itself. The density of pure water is also 62 4 lbs cu ft pounds per cubic foot and if we know that ammonium nitrate has a sg of 0 73 then we can calculate that its density is 0 73 x 62 4 45 552 lbs cu ft. The archimedean measurement treats each rock as a uniform solid. The other rocky planets mercury venus and mars are covered with basalt as is the ocean floor of earth but only earth has this beautiful and interesting rock type in abundance.

The density of basalt one of the most common kinds of terrestrial volcanic rocks can be as high as 3 0 g cm 3. It is the most common plutonic rock of the earth s crust forming by the cooling of magma silicate melt at depth. This free density calculator determines any of the three variables in the density equation given the other two. For gases the reference is air at room temperature 20 c or 68 f.

Granite solid weighs 2 691 gram per cubic centimeter or 2 691 kilogram per cubic meter i e. Some meteorites have low densities 3 0 g cm 3 but such meteorites are rare among meteorites. Learn more about the properties and uses of granite in this article. Granite coarse or medium grained intrusive igneous rock that is rich in quartz and feldspar.

Therefore these numbers translate directly to g cm 3 or tonnes per cubic meter t m 3. Granite is the signature rock of the continents.