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What is a type of crystal grain that forms when rock cools Slowly?
Wiki User
∙ 8y ago
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.
Wiki User
∙ 13y ago
Wiki User
∙ 15y agoWhen magma cools quickly, small crystals, or in some cases, no crystals are formed in the resultant rock.
Wiki User
∙ 14y agoComparatively small crystals form from rapidly cooling magma.
Wiki User
∙ 14y agoRapid cooling leads to fine crystals. This produces an aphanitic texture in igneous rocks.
Wiki User
∙ 13y agoNot sure about your use of "crystals", but when lava cools quickly, it makes a volcanic glass called "obsidian".
Wiki User
∙ 13y agofine grain
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What type of crystal grain forms when molten rocks cool slowly?
Quartz
What is grain according to geologists?
Grain refers to particle or crystal size in rock.
Is granite crystal or grain size?
granite's crystal size varies from 1 mm to 10 mm
What happens to the grain when igneous rock cools more quickly and solidifies?
it getys harder
What is the most important factor affecting the texture of an igneous rock?
The rate at which the lava or magma cools affects the grain size, or texture, of the rock. The faster a rock cools, the smaller the individual mineral grains within it remain. Examples are basalt and rhyolite, which cooled on the earth's surface and are very fine-grained and therefore have a finer texture. But the slower a rock cools, the larger the individual mineral grains within it can grow. The best example is granite, a very coarse-textured rock that cooled very slowly deep within the earth.
What type of crystal grain forms when magma cools slowly?
the crystals are large
What type of crystal grain is formed when molten rock cools slowly?
Large crystals with a coarse crystal grain texture.
What is a type of crystal grain which is formed when molten rock cools slowly?
It is mineral
Crystal grain that forms when molten rock cools quickly?
Fine
What type of crystals grain that forms when molten rock cools slowly?
Quartz
What type of crystal texture is formed when magma cools slowly within warm rock underground?
As magma cools slowly, large coarse crystals form. This is described as a phaneritic texture.
What type of crystal grain forms when molten rock cools quickly?
The crystal can be fine like Obseidian
What is a 4 letter word for a type of crystal grain that forms when molten rock cools quickly?
lava
Type of crystal grain that forms when molten rocks cool slowly?
Visible or coarse.
Type or crystal grain that form when molten rock cools quickly?
Fine crystal grain.
What is the type of crystal grain that forms when molten rock cools quickly?
Small crystal grains form from rapid cooling of magma resulting in an aphanitic rock texture.
What is the name of the crystal grain that is formed when molten rock cools slowly?
The texture of the rock product of slow cooling magma is referred to as coarse grained.
