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Why do some igneous rocks have bigger crystals then others?

some of them are formed inside the earth and take 100's of years to form and form large cyclists in that time


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.


Why does igneous rock have bigger crystals and some have small crystals?

The reason why is because of where it comes from in a volcano and how fast it cools. If it cools slowly then it will have bigger crystals because the longer it has to cool the longer the crystals have to grow. So dose that answer your question


What is the relationship between cooling time igneous rocks and the size of its crystals?

Plutonic rocks are intrusive (they solidify before they reach the surface) and have larger crystals because the crystals have had a longer time to accumulate in the heat under the surface. Volcanic rocks are extrusive (they solidify on or near the surface) and have smaller crystals because the element has less time to accumulate when they cool quickly.


Which mammal the African elephant or dinosaur is bigger?

A dinosaur is not a mammal. And some dinosaurs were bigger and some smaller.


What are some common items that form crystals?

Salt and ice are two common mineral crystals.


Why some salts form crystals?

cuz they are mota


Why do some rocks have both small and large crystals?

It depends how slow/fast it cools into a rock. The slower it cools, the larger the crystals. The faster it cools, the smaller the crystals. It can also have no crystals. Let's say lava shot itself into the water. It cools so fast it might not have crystals


Are most asteroids about the same size of the earth?

no some are bigger and some are smaller


Why do some rocks have larger crystals than others?

The size of the crystals depend on the time it took the rock to cool. Slow cooling rocks have larger crystals because they had a longer time to grow their crystals. For example Basalt is an volcanic extrusive igneous rock that forms from rapid cooling of the magma and are usually located near the surface or on the ocean floor, it has finer crystals not visible by the naked eye. Granite is an intrusive igneous rock that forms from slow cooling of the magma within the earth crust, it has larger crystals.


Why do halite crystals always break into smaller crystals of the same shape?

Halite crystals break into smaller crystals of the same shape due to the crystal structure and cleavage of the mineral. Halite has a cubic crystal structure and perfect cubic cleavage, which means it breaks along planes that are parallel to the faces of the cube, resulting in smaller crystals with the same cubic shape.


Why do some igneous rocks have big crystals or grains and some igneous rocks have small crystals or grains?

Igneous rocks with big crystals or grains form from slow cooling beneath the Earth's surface, allowing time for larger crystals to grow. In contrast, igneous rocks with small crystals or grains form from fast cooling at or near the Earth's surface, limiting the time available for crystal growth.