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A factor that determines crystal size in igneous rocks is the speed in which the lava/ magma crystallised or froze. As pillow basalts form at mid ocean ridges where magma is erupted into direct contact with the cold sea water the crystals form very fast and are therefore small. Other basalts erupted on land still have relatively small crystals and crystallised relatively fast but overall slower then pillow basalts.
What else can I help you with?
Do all crystals have smooth edges?
No, not all crystals have smooth edges. Some crystals, like pyrite and fluorite, can have natural jagged or rough edges depending on their formation process. Smooth edges are more common in crystals like quartz and amethyst that form in more stable environments.
Do you think extrusive or intrusive igneous rocks are likely to have larger crystals?
If a rock has large crystals, it is an intrusive rock. Intrusive rocks form underneath the Earth's surface. Magma cools slowly so it has time to form large crystals. An example is granite, where you can see the crystals with your naked eye. Rocks that have small crystals are extrusive rocks. Extrusive rocks are ones that form from lava (blasted out of a volcano) so they cool very quickly, not allowing large crystals to form. An example is obsidian, where you cannot visibly see the small crystals; it just looks like one black, glassy rock.
Does melted rock that cools quickly result in igneous rock with large mineral crystals?
No, melted rock that cools quickly result in igneous rock with large minerals because large crystals take time to form and the rocks that usually have them are the ones that were formed inside the earth.
Why is it that some igneous rock is made of large crystals and some is made of small crystals?
An igneous rock's crystal size is dependent on how long it takes to cool from magma into a solid. Intrusive igneous rocks, the ones that solidify from magma underground, are slow to harden, giving crystals plenty of time to grow larger. Extrusive igneous rocks, formed from lava above ground, cool fairly rapidly, not allowing the crystals much time to grow in size.
What are some crystals?
Crystals are solids that form by a regular repeated pattern of molecules connecting together. Shaped like cubes, hexagons, and tetragons. They are all around us. Some crystals sparkle, especially jewels like diamonds and rubies. Crystals are minerals that have grown into regular solid shapes.Crystals are minerals that have grown into regular,solid shapes. Crystals are unusual! Cause not all crystalsare the same shape and size there are all different. The variety of crystals , particularly those that are valued most are: diamonds, rubies, sapphire-derive from molten rock, or magma. Magma is produced from the intense heat from the earth's core melts rocks in the upper mantle, or the crust. As this molten soup of atoms cools and solidifies, it forms a symmetrical three dimensional crystal or crystals. Magma ,which cools rapidly, may have insufficient time to form crystals and instead turns into amorphous material such as obsidian, which is a natural glass. As magma cools, the first crystals to form are the ones that have the highest melting points or relatively simple chemical compositions.The variety of crystals , particularly those that are valued most are: diamonds, rubies, sapphire-derive from molten rock, or magma. Magma is produced from the intense heat from the earth's core melts rocks in the upper mantle, or the crust. As this molten soup of atoms cools and solidifies, it forms a symmetrical three dimensional crystal or crystals. Magma ,which cools rapidly, may have insufficient time to form crystals and instead turns into amorphous material such as obsidian, which is a natural glass. As magma cools, the first crystals to form are the ones that have the highest melting points or relatively simple chemical compositions
Why are the basalt that were born in water are smaller than the ones on ground?
I am not sure what you mean by "smaller" BUT - Most piles of basalt on the planet (eg hawaii) are in water - Indeed the whole oceanic seafloor is basalt, so there is more basalt in water than ALL the basalt to be found on land.
Are pillow pets small or large?
Pillow pets come in two different sizes. There are smaller ones which are 11 inches. The there are the bigger ones which one can use to sleep on better and those are 18 inches.
What rock have crystal in?
All rocks have crystals in them, what ever king they are. If they cool down slowly they tend to have bigger ones and if they cool down quickly they have smaller ones. SIMPLES!!
Why are the crystals that are on the edge of the lava flow smaller than the ones in the middle?
Because the crystals in the middle of the lava flow are small because they have a small amount of time to cool. The crystals on the edge of the lava flow are bigger because they have a longer amount of Time to cool down.
Is this true or false Intrusive rocks have smaller crystals than extrusive rocks?
Generally, false. Intrusive rocks cool far more slowly than extrusive ones, so the crystals have time to grow larger.
Which pillows are the best for pillow humping?
firm ones
What is the difference between pillow pets and my pillow pets?
They are the same thing. My pillow pets were the original pillow pets. After they made more they called them just "Pillow Pets" It is the same thing. if it is called my pillow pets you might have got one of the original ones (for example the penguin)
Does sandstone have crystals?
Sandstone typically does not have crystals. It is primarily composed of sand-sized mineral particles that are cemented together, giving it a granular appearance. If sandstone does contain crystals, they are usually very small and not easily visible to the naked eye.
What do large jelly crystals do that small jelly crystals don't?
there bigger than small ones and they devolve faster They help plants while the small ones have no water to help the plants
What type of crystals will igneous rock have if it cools quickly?
Small ones.
What is smaller 13 or 14?
13 is smaller because the tens are the same but the 3 in the ones less than the 4 in the ones
Splitting large Nuclei into smaller ones is defined as what?
Nuclear fission is defined as splitting large nuclei into smaller ones.
