How does granite compare to rhyolite?

The difference between them is that rhyolite is an intrusive igneous rock whereas granite is an extrusive igneous rock. Granite is formed when magma cools down deep inside the earth crust. It is an intrusive igneous rock. It has large crystals and is thus called coarse-grained.

How are granite and rhyolite similar quizlet?

Both are igneous rocks that have the same composition. Granite forms deep beneath the surface and therefore is coarse-grained. Rhyolite forms at much shallower depths and thus is fine-grained.

How can rhyolite and granite have the same mineral composition and look different?

Granite and rhyolite have the same mineral composition, but their grain size gives each a distinct appearance. The key difference between intrusive and extrusive igneous rocks—the size of crystals making them up—is related to how rapidly melted rock cools.

Are rhyolite and granite both mafic?

Granite and rhyolite are considered felsic, while basalt and gabbro are mafic (click here for more information on mafic and felsic).

Why is granite more common than rhyolite?

Mafic magma is much hotter than felsic magma. Because of this, it is easier for the basaltic lavas to reach the surface while still in the liquid phase. Therefore, more basalt than gabbro, and more granite than rhyolite. Another reason is the internal crystalline structure of the silicate minerals.

Is granite and rhyolite?

Rhyolite is extrusive equivalent of granite magma. It is composed predominantly of quartz, K–feldspar and biotite. It may have any texture from glassy, aphanitic, porphyritic, and by the orientation of small crystals reflecting the lava flow.

How can granite and slate both be found in the same conglomerate?

How is each used? They could both be eroded, compressed, and cemented into the same rock. Use the rock cycle to explain how pieces of granite and slate could be found in the same piece of conglomerate.

What is the probably most common and characteristic feature of sedimentary rocks?

layers, commonly termed strata or beds, are probably the most characteristic feature of sedimentary rocks.

How are granite and gneiss similar?

Gneiss is made up of coarse-grained minerals such as quartz and feldspar. Granitic gneiss has a mineral composition similar to that of granite. Schist is a metamorphic rock usually formed originally from shale.

What do granite and rhyolite have in common?

Granite is plutonic and rhyolite is volcanic. They have very similar compositions but one is erupted onto Earth’s surface and the other crystallises at depth. As a result, plutonic rocks are coarse-grained and volcanic rocks are fine-grained.

Where is granite and rhyolite found?

However, rhyolite forms as a result of a violent volcanic eruption, while granite forms when magma solidifies beneath the Earth’s surface. Rhyolite is found all over the planet, but it is uncommon on islands located far from large land masses.

What type of rock is rhyolite?

rhyolite, extrusive igneous rock that is the volcanic equivalent of granite. Most rhyolites are porphyritic, indicating that crystallization began prior to extrusion.