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Crystal size in igneous rocks is generally a marker for how long magma or lava took to cool and solidify. Larger crystal size is indicative of slow cooling.

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What do symmetrical crystal shapes indicate about mineral?

It indicates that it is a metallic luster


Size of sedimentary mineral crystal grain?

that means like when somthing is in a own properties


What effect the size of crystal?

Temperature.


What is a factor that controls grain size in igneos rocks?

Crystal size in igneous rocks is controlled by the rate of cooling whereby the slower the rate, the larger the size of crystal.


How does the size of a crystal indicate how it was formed?

A longer period of time at a mineral's crystallization temperature and pressure range, will result in increased crystal size. Rocks like granite have visible crystals because the minerals within the rock cooled very slowly underground. Rocks like obsidian have no crystals because they cooled very quickly after eruption above ground.


How can the size of crystal in igneous rocks tell you?

The size of crystals in igneous rocks can indicate the cooling rate of the magma from which they formed. Larger crystals typically develop when magma cools slowly beneath the Earth's surface, allowing more time for crystal growth, resulting in intrusive rocks like granite. In contrast, smaller crystals form when lava cools rapidly at or near the surface, leading to extrusive rocks like basalt. Therefore, crystal size is a key factor in understanding the formation environment and history of the rock.


What does the size of a correlation coefficient indicate?

Size of variables


Which crystal can help identify as igneous rock as intrusive or extrusive?

What is the effect of location on crystal size? Label the location of intrusive and extrusive igneous rocks on the diagram below. Then, illustrate the crystal size of the rock formed at that location in the appropriate callout circles.


What do symmetrical crystal shapes indicate about a mineral?

Symmetrical crystal shapes indicate that the mineral has a well-defined crystal structure with uniform internal arrangement of atoms or molecules. This suggests that the mineral formed under conditions that allowed for ordered growth, resulting in distinct geometric shapes.


How do you classify crystal structures?

By size, and geometry, by their structure in one of the six mineral crystal systems.


What are three things crystal size dependent on?

Primarily the cooling rate of the mineral compound.The faster the rate cooling smaller the crystal size of the mineral.Consequently, large crystal specimins are derived from igneous bodies with a very slow rate of cooling.


What do symmerical crystal shapes indicate about a mineral?

what ddoes the crystals shape look like