yes it does
Slow cooling produces large grains, fast cooling produces fine-grains in the rock.
Slowing cooling produces large crystals eg granite. Fast cooling makes much smaller crystals eg basalt
No. Fast cooling rocks form small crystals.
The slower the cooling the larger the grains in the rock.
fast cooling caurses fine grain ignous rocks and slow cooling causes course grain
Fast cooling=small crystals Slow cooling=big crystals
The resultant rock would have a porphyritic texture; large crystals (usually feldspars) scattered among small crystal grains.
Basalt is fine grained because it is rapidly cooled from molten material. Rapid cooling inhibits the growth of large mineral crystals, as the time that they are allowed to form and grow is lessened.Basalt grains are small because of fast cooling.
It depends on the rate of cooling fast cooling=small crystals slow cooling=large crystals
Crystals take time to form. Slow cooling rocks like granite have large crystals, but faster-cooling rocks like basalt have small or no crystals.
The rate of cooling affects the crystal size of the minerals in the igneous rocks. Slower cooling, larger crystals. Fast cooling, small crystals.
fast cooling lava -small crystals or no crystals
Metals are made up of lots of individual crystals known as grains. different grains may have different alignments (i.e. the repeating pattern of atoms in the grain will point in a different direction to those in a neighbouring grain). In some cases they may also have differences in chemical composition (e.g. steel may split into cementite, perlite and ferrite grains). Grains size is generally determined by heat treatment, particularly cooling rates. grains can vary from micron sizes to several centimetres. fast cooling rates from molten metals results in small grains, slow cooling rates in larger ones. grains can grow larger (at the expense of their neighbours) if a metal is heated to near it's melting point. you can see grains in most metals by polishing, etching and examining under a microscope.
Fast cooling lava or magma creates an aphanitic or small crystal (grain) textured igneous rock.
small, because they did not have the time to grow any larger
It depends on the cooling of lava. Slow cooling forms big crystals deep under the surface while fast cooling creates small crystals on or just below the earths surface. Itstant cooling wouls have no crystals.
The rate of cooling is the speed at which magma or lava crystallizes. When the speed is slow it results in big crystals. When the speed is fast it results in small crystals.
Pumice is the result of extremely fast cooling lava.
Pumice normally doesn't have any grains at all. It would be very unusual for it to have grains. Just like Obsidian, Pumice is cooled too fast to have any grains in it. One of the biggest differences between them is that Pumice is cooled with pockets of air while Obsidian has a glassy look.
As fast as the wind carries grains of sand
Fast cooling causes smaller crystals to form than when the rocks cools slowly. An igneous rock that cooled quickly is basalt, while a slow-cooler is granite.
Craters and fast cooling
== == The crystals will be small or may not form at all. Fast cooling magma produces small crystals. Slow cooling magma produces larger crystals. The longer a mineral has to form at its crystal growing temperature range, the larger the crystals will be.