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Rhyolite is an igneous rock that has formed from rapidly cooling lava or ash.

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Does Dunite cool quickly or slowly?

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Does the biotite rock cool quickly or slowly?

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What property of a surface determines how quickly or slowly it will heat and cool?

The thermal conductivity and color of a surface determines how quickly or slowly it will heat and cool


Is Rhyolite foliated or non-foliated?

Neither. Foliation is a term used in assesing metamorphic rocks, not igneous rocks such as rhyolite.


What is the term when magma cool slowly then cools quickly?

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What is the igneous rocks that cool quickly on the surface?

Igneous rocks that cool quickly on the surface are known as extrusive or volcanic rocks. Examples include basalt, andesite, and rhyolite. These rocks have fine-grained textures due to their rapid cooling process.


Does andesite cool quickly or slowly?

Lava will cool quickly compared to underground magma.


Does Granite cools very quickly?

No. Granite cools relatively slowly; its large crystals are one method of observing this. Granite is referred to as a "phaneritic" igneous rock, meaning that it is coarse-grained. Coarse-grained rocks cool slowly, which means that the minerals have time to form large crystals before the rock solidifies. A rock with the same composition as granite that does cool quickly is called rhyolite.


Do intrusive rocks have large crystals because they cool quickly?

No. Intrusive igneous rocks have large crystals because they cool slowly.


What happens if you cool salt water to quickly or to slowly after heating it?

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Do metamorphic rocks cool slowly?

Most do, however some do not, for instance a pseudotachylyte cools quickly.


Why does andesite cool slowly?

Andesite cools quickly because it forms from material erupted onto the surface, and so is composed to a cool environment.