What are the charicteristics of igneous rocks?

Anonymous

∙ 13y ago

Updated: 8/20/2019

Igneous rocks are nearly always composed of silicate minerals and have an interlocking crystalline structure. The size of the crystals depends on how quickly the rock has cooled. Igneous rocks that cool near or on the surface may also contain gas bubbles.

Wiki User

∙ 13y ago

What else can I help you with?

When molten rocks cools what rocks form?

igneous rocks

What are igneous rocks that form over the surface?

Rhyolititcen rocks.

What do you call rocks that have been formed from the hot molten material within the earth's crust that has cooled and hardened?

Igneous rocks are formed by the solidification of molten materials.

Are igneous rocks made up of igneous rocks?

Sedimentary rock can be made up partially of igneous clasts, but igneous rock is igneous rock.

Are volcanic rocks igneous rocks?

Yes. Volcanic rocks are extrusive igneous rocks.

Why are igneous are called primary rocks?

Igneous rocks

Are sedimentary rocks are harder than igneous rocks?

No, igneous rocks are harder than sedimentary rocks on average.

How do fine- grained igneous rocks from?

extrusive igneous rocks =/

What kind of igneous rocks for on earths surface?

Some do. These are called extrusive igneous rocks. However a large portion of igneous rocks form beneath the surface. These are intrusive igneous rocks.

Are granite rocks igneous rocks?

Yes. More exactly, intrusive igneous rocks.

Are there igneous rocks on Mars?

yes, the orange rocks on mars are called igneous rocks!

Where would igneous rocks be at?

Igneous Rocks - Rocks formed by crystallization from a melt (magma)