answersLogoWhite

0


Best Answer

The speed at which the magma/lava cools

ie. fast cooling = not much time for crystals to form = little or no small crystals

slow cooling = much time for crystals to form = big crystals

User Avatar

Wiki User

13y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

13y ago

The cooling speed. The slower the cooling, the larger the crystal size.

This answer is:
User Avatar

User Avatar

Wiki User

13y ago

This can depend on several things, however, most commonly, slower cooling and more volatiles in solution cause larger grains.

This answer is:
User Avatar

User Avatar

Robert Dockery

Lvl 2
4y ago

how fast the rock cooled

This answer is:
User Avatar

User Avatar

Wiki User

10y ago

not 2 sure @ the moment sowy :(

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What determines how large the crystals and an igneous rock Will be?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What determines how large the crystals in an igneous rock will be?

How fast the magma or lava cooled. How fast the rock cooled


What determines how large the crystals in the igneous rock will be?

How fast the magma or lava cooled. How fast the rock cooled


What size of rock texture refers to igneous rock?

The size of the mineral crystals in an igneous rock determines the rock's texture.


Do igneous rocks have small crystals large crystals or no crystals?

It depends on the type of igneous rock. Intrusive igneous rocks such as granite have large crystals, extrusive igneous rocks may have small crystals as in basalt or no crystals as in pumice.


What igneous rock does not have large crystals?

sedimantry


What conditions lead to formation of large crystals in an igneous rock?

Igneous rocks will develop large crystals is they cool slowly underground.


What conditions lead to the formation of large crystals in an igneous rock?

Igneous rocks will develop large crystals is they cool slowly underground.


What is an extrusive igneous rock with large crystals?

granite


How can you tell that a rock is a igneous rock?

Well The Igneous Rock: When it Forms Underground the Pressure combines with Large crystals :)


What factor determines if an igneous rock has no crystals small crystals or large crystals?

it depends on the heat, if it cool very quick then it has small crystals but if it cool very slowly than it is bigger the slower the cooling period the bigger the crystals


Are large crystals intrusive or extrusive igneous rock?

Intrusive


A type of instrusive igneous rock with large crystals?

Gabbro.