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Slowing cooling produces large crystals eg granite. Fast cooling makes much smaller crystals eg basalt

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What do large crystal grains in an igneous rock indicate?

Large crystal grains in an igneous rock indicate that the rock cooled slowly at depth beneath the Earth's surface, allowing sufficient time for the crystals to grow. This slow cooling process typically occurs in intrusive or plutonic igneous rocks.


Large crystal grains in an igneous rock are an indication that crystals formed?

slowly from a magma with abundant time to grow. This can suggest an intrusive or plutonic igneous rock type, such as granite. Rapid cooling leads to small crystal grains, characteristic of extrusive or volcanic igneous rocks like basalt.


Size of sedimentary mineral crystal grain?

that means like when somthing is in a own properties


Why do some igneous rock have bigger mineral grains than others?

This is due to the rate of cooling - a slower rate of cooling results in large mineral grains because the molecules had time to maneuver into a crystalline lattice. A faster rate of cooling results in smaller mineral grains because the molecules were locked into place faster and therefore couldn't form the crystalline lattice structures before getting stuck.


Lin found an igneous rock with large grains of mineral crystal where did this rock most likely form?

d. on the surface of the Earth


Is the crystal in the igneous rock large if it cools slowly from magma?

Yes. Slow cooling magma produces larger mineral crystals.


What makes igneous rocks have different Crystal sizes?

The cooling rate of magma/lava determines the crystal size in igneous rocks. Fast cooling results in small crystals or glassy texture (e.g., obsidian), while slow cooling leads to large crystals (e.g., granite). Factors like depth of magma intrusion, presence of water, and pressure can also influence crystal size.


What igneous rock cools deep underground?

Granite is an igneous rock that cools deep underground. It is formed from the slow cooling of molten rock below the Earth's surface, allowing large mineral grains to form.


What the grains found in igneous rock?

Igneous rock has played a major role in the crustal evolution of Earth and other ... If the melt solidifies at depth, then large mineral grains, termed phenocrysts, will result. .... Some of the common minerals found in igneous rock include feldspars.by ryan boman from dmap


What type of crystals is formed from slow cooling?

Crystals formed from slow cooling typically have larger crystal sizes due to more time for the atoms to arrange in an ordered structure. This results in minerals with well-defined crystal faces and clearer textures, as seen in intrusive igneous rocks like granite and gabbro.


Formed from slow cooling magma speckled with large minerals grains?

This describes an igneous rock with a coarse-grained texture, likely formed deep within the Earth's crust where cooling is slower, allowing time for large mineral grains to form. This type of rock is typically intrusive, such as granite or diorite, and is characterized by its visibly distinct mineral grains.


What is the cooling rate of a coarse grained igneous rock?

The cooling rate of a coarse-grained igneous rock is relatively slow, which allows for the formation of large mineral grains. This slow cooling rate typically occurs deep within the Earth's crust or in magma chambers, allowing the minerals to grow and develop over time.