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Small crystals or possibly no crystals at all form from rapidly cooling lava.

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14y ago

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Will crystals be small if magma cools fast?

Yes they will


What affects the size of crystals formed from magma?

The rate at which the magma cools affects the size of the crystals that form. If it cools slowly, large crystals will form. If it cools rapidly, small crystals will form.if it takes the rock a long time to cool down the crystals will be bigger if the rock takes a short time to cool the crystals will be smaller


What types of crystal are formed if maltan rock cools quickly?

When a magma cools/solidifies, crystals are formed. The quicker the magma cools, the tinier the crystals. A granite for example, which is formed through slow cooling in the Earth's crust, consists out of big crystals. Contrary, magma erupting at the surface (which is then called lava) cools rapidly and consists out of tiny crystals. In extreme cases, the lava cools so rapidly that the resulting rock appears glassy. Hope this helps!


Why are mineral crystals in obsidian too small to see without a microscope?

Obsidian cools rapidly, preventing large crystals from forming. As a result, the mineral crystals are too small to be seen with the naked eye. The rapid cooling process hinders the growth of crystals, resulting in a smooth and glassy texture.


Intrusive igneous rock forms small crystals because it cools rapidly.?

false


What is a type of crystal grain that forms when rock cools Slowly?

When molten rock cools slowly, it will have a lot of time to form crystals, so the crystal size will be quite big. Take granite, for example. With the naked eye, you can see the individual crystals. The grain size is quite large. The kind of mineral that forms is dependent on the composition of the magma.


small crystals form from rapidly cooling magma?

no . they come from rapid cooling lava


If a crystal cools rapidly it would be?

Not enough information. Some crystals will break if they cool rapidly, some crystals will not form correctly if the solution cools too quickly.


Does rapidly cooled magma or lava contain small crystals?

Yes, rapidly cooled magma or lava typically results in the formation of small or no crystals due to the limited time available for crystal growth. This leads to the development of fine-grained or glassy textures in the rock.


Do igneous rocks have large crystals?

It depends on the cooling rate of the magma. If the magma cools slowly underground, large crystals can form, creating intrusive igneous rocks. If the magma cools rapidly on the Earth's surface, small crystals or glassy textures can result in extrusive igneous rocks.


Magma that cools quickly does it produce rocks that are fined grained?

Generally speaking, yes. Magma that cools quickly will produce small, "fine grained" crystals.Magma which cools slowly will generally produce rocks with larger, visible to the naked eye, crystals.This is because while magma is cooling, crystals are forming. Generally, crystal which have more time to grow will be larger. Therefore, generally, the slower magma cools, the bigger the crystals will be. The faster lava cools, the less time crystals have to grow and are thus smaller, "fine grained".


What feature in igneous rocks is the best indication of how rapidly the magma crystallized?

The size of the crystals. Large crystals mean the magma cooled slowly, small crystals are a sign that the magma was cooled quickly.