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What refers to the size of the crystals evident in the rock and is the property you use to classify igneous rocks is?
Wiki User
∙ 12y ago
intrusive and extrusive
Wiki User
∙ 12y ago
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What are two properties used to classify igneous rock?
Igneous rocks are usually classified by their chemical composition (acidic or basic), and by whether they formed underground (intrusive, characterised by large mineral crystals) or on the surface (extrusive, made of tiny, microscopic crystals). For instance, basalt is a basic, extrusive rock, and granite is an acidic, intrusive rock.
What does igneous rock contain?
Randomly arranged interlocking crystals and no fossils :)
How do you classify igneous rocks?
Look at them. There shape, size, color and feel! Dont worry you will figure it out....
What is the name of igneous rocks that have large crystals and small crystals?
Large Crystals = Intrusive Small Crystals = Extrusive The name relates to where the minerals were cooled (at at what rate). In the case of intrusive igneous, the rocks were formed above Earth's surface and were thus cooled quickly and the minerals had little time to become defined. Extrusive rocks, therefore, were formed within the Earth's mantle and had a much longer time before being gathered to cool (as they slowly rose to the top).
What would have larger crystals igneous rock that formed below earths surface or above?
below
What is the chemical property used to classify igneous rocks?
youre mom
What chemical property is most commonly used to classify igneous rock?
The percentage of its composition of silica.
Do igneous rocks have small crystals large crystals or no crystals?
It depends on the type of igneous rock. Intrusive igneous rocks such as granite have large crystals, extrusive igneous rocks may have small crystals as in basalt or no crystals as in pumice.
What type of igneous rocks are easy to classify because the minerals that they contain can be seen and identified?
Crystals are easy to classify because the minerals that they contain are easily identified. One example of this would be emeralds. Another example of a crystal is a diamond.
What igneous rock has crystals that are not visible?
Extrusive igneous rock consists of mineral crystals that are not observable with the naked eye. Obsidian is an extrusive igneous rock (volcanic glass) where there technically are no mineral crystals.
What is an igneous rock with crystals?
Granite with larger crystals, basalt with smaller crystals.
What is a type of igneous rock that forms visible crystals?
Granite, gabbro, and diorite are a few igneous rocks that forms crystals. Igneous rocks that form visible crystals are intrusive igneous rocks, rocks that form under the earth's surface.
What are crystals igneous sedimentary or metamorphic?
its igneous and sedimentary and metamorphic
Do igneous rocks have crystals in them?
Not all of them. Volcanic glass does not have crystals.
Do igneous have bands of crystals?
No, they do not have bands of crystals but they are all crystalline.
What does the presence of tiny crystals in a piece of igneous rock tell you about it?
Tiny crystals in the igneous rock tells you it cooled quickley.
What condition lead of the formation of large crystals in an igneous?
Igneous rocks will develop large crystals is they cool slowly underground.
