It is common both on earth and other planetary bodies.
Basalt granite density.
Basalt is the dark heavy volcanic rock that makes up most of the world s oceanic crust.
It forms from lava flows which extrude onto the surface and cool.
Basalt is an aphanitic fine grained igneous rock that is relatively low in silica and alkali metals it has less than 10 feldspathoid by volume with at least 65 of the rock consisting of feldspar in the form of plagioclase this places basalt in the basalt andesite field of the qapf diagram basalt is further distinguished from andesite by its silica content of less than 52.
Since gabbro and basalt are made of the same minerals their densities are similar.
The trick is to heat the basalt back up again so it can melt and give the iron another shot at the core.
Some meteorites have low densities 3 0 g cm 3 but such meteorites are rare among meteorites.
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.
Basaltic crust is dark and thin and heavy while granite is light and accumulates.
The key difference between basalt and granite is that basalt is mostly occurring on ocean floors while granite is in the crust of the earth in all continents.
Earth contains three kinds of rocks namely igneous rocks sedimentary rocks and metamorphic rocks basalt and granite are two types of igneous rocks.
Gabbro s density ranges from 2 7 3 3 g cm 3.
When we have to compare granite vs basalt the texture color and appearance plays an important role in determining the type of rock.
Basalt is an igneous volcanic rock that forms commonly in oceanic crust and parts of continental crust.
And if you know your igneous petrology you will see that the more mafic rich in magnesium and iron a rock is the greater its density.
Some of it erupts on land too but to a first approximation basalt is an oceanic rock.
Compared to the familiar granite of the continents basalt ba salt is darker denser and finer grained.
Its principle minerals include pyroxene feldspar and olivine.
And not all granites basalts and gabbros contain exactly the same minerals.
All rocks of igneous origin consist of magma or molten earth that finds its way up to.
Rock density is very sensitive to the minerals that compose a particular rock type.
It wants to be there and heat is the key which unlocks the door.
Sedimentary rocks and granite which are rich in quartz and feldspar tend to be less dense than volcanic rocks.
The density of basalt one of the most common kinds of terrestrial volcanic rocks can be as high as 3 0 g cm 3.
