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How is the size of mineral crystals in igneous rock related to the rate at which they cool?
When igneous rocks cool quickly, they have small crystals and have a texture that may be described as aphanitic. When igneous rocks cool slowly, they have much larger crystals and have a texture that may be described as phaneritic or pegmatitic.
How can you tell the difference between an igneous rock that formed above ground and one that formed below?
Igneous rocks that form below ground (intrusive) have larger crystals due to slower cooling, whereas igneous rocks that form above ground (extrusive) have smaller crystals or a glassy texture due to rapid cooling. Additionally, intrusive rocks may show visible layering or bands, while extrusive rocks typically have a more uniform appearance.
What unique factor about the arrangement of mineral crystals occurs in many metamorphic rocks?
Foliation, which is the alignment of mineral crystals in a parallel fashion, is a unique factor in the arrangement of mineral crystals in many metamorphic rocks. This alignment forms due to the intense pressure and temperature conditions during the rock's formation, resulting in a distinct layering or banding within the rock.
What determines the size of the crystals that form in a sample of granite?
Crystal size in igneous rock is predominately a factor of time spent in cooling from lava or magma. Samples with relatively large crystals are the result of the magma having spent a longer amount of time at ideal crystal forming temperatures for each mineral present.
Which is not a major factor that influences the strength of a rock?
The color of the rock is not a major factor that influences the strength of a rock. Factors such as mineral composition, grain size, texture, and porosity play a more significant role in determining a rock's strength.
How is the size of mineral crystals in igneous rock related to the rate at which they cool?
When igneous rocks cool quickly, they have small crystals and have a texture that may be described as aphanitic. When igneous rocks cool slowly, they have much larger crystals and have a texture that may be described as phaneritic or pegmatitic.
What factor determines if an igneous rock has no crystals small crystals or large crystals?
The rate at which the magma cools determines the size of crystals in an igneous rock. Slow cooling allows for large crystals to form, while rapid cooling results in small or no crystals. Other factors such as mineral composition and pressure can also influence crystal size.
How can you tell the difference between an igneous rock that formed above ground and one that formed below?
Igneous rocks that form below ground (intrusive) have larger crystals due to slower cooling, whereas igneous rocks that form above ground (extrusive) have smaller crystals or a glassy texture due to rapid cooling. Additionally, intrusive rocks may show visible layering or bands, while extrusive rocks typically have a more uniform appearance.
Which is a factor that effects the size of mineral crystals formed in magma?
fluoresence is not a factor. I had this same question and i got fluorescence as a correct answer
What unique factor about the arrangement of mineral crystals occurs in many metamorphic rocks?
Foliation, which is the alignment of mineral crystals in a parallel fashion, is a unique factor in the arrangement of mineral crystals in many metamorphic rocks. This alignment forms due to the intense pressure and temperature conditions during the rock's formation, resulting in a distinct layering or banding within the rock.
Which is not a factor that effects the size of mineral crystals formed in magma?
The composition of the minerals is not a factor that affects the size of mineral crystals formed in magma. The factors that do affect crystal size include cooling rate, amount of water present, and amount of pressure.
What determines the size of the crystals that form in a sample of granite?
Crystal size in igneous rock is predominately a factor of time spent in cooling from lava or magma. Samples with relatively large crystals are the result of the magma having spent a longer amount of time at ideal crystal forming temperatures for each mineral present.
Which is a factor that affects the size of a mineral crystals formed in magma?
evaporation
What is factor that affects the size of mineral crystal formed in magma?
The main factor is time spent in cooling and solidifying. More time means larger crystals.
What is the main factor that affects the size of minerals in igneous rocks?
Crystal size is largely dependent on the time the magma takes to cool and solidify. Slow cooling equals large crystals. Fast cooling equals small crystals.
Which is not a major factor that influences the strength of a rock?
The color of the rock is not a major factor that influences the strength of a rock. Factors such as mineral composition, grain size, texture, and porosity play a more significant role in determining a rock's strength.
What determines the size of the crystal that form in a sample of granite?
Crystal size in igneous rock is predominately a factor of time spent in cooling from lava or magma. Samples with relatively large crystals are the result of the magma having spent a longer amount of time at ideal crystal forming temperatures for each mineral present.
