The mineral proportions of the rock are what allows geologists to classify rocks chemically. Depending on the proportion of light minerals to dark minerals, igneous rocks can be broken into four main types: felsic, intermediate, mafic and ultramafic. The following list gives more information about igneous chemical categories.
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∙ 12y agoIgneous rocks are classified by either being intrusive or extrusive, then mafic or felsic then they are classified by either fine grain or course grained textures.
Igneous rocks are classified as rocks that originated from the liquid phase, specifically from the cooling and solidification of magma or lava.
they are classified into 3 major kinds of rocksthey are the ;IGNEOUS ROCKS,SEDIMENTARY ROCKS,AND METAMORPHIC ROCKS
Igneous rocks can be classified by their method of formation and by their mineralogy.
Volcanic rocks are classified as extrusive igneous rocks, forming from the solidification of lava.
Igneous rocks are classified by either being intrusive or extrusive, then mafic or felsic then they are classified by either fine grain or course grained textures.
Igneous rocks are classified as rocks that originated from the liquid phase, specifically from the cooling and solidification of magma or lava.
they are classified into 3 major kinds of rocksthey are the ;IGNEOUS ROCKS,SEDIMENTARY ROCKS,AND METAMORPHIC ROCKS
Igneous rocks can be classified by their method of formation and by their mineralogy.
Mantle rock is classified as ultramafic igneous rock.
Igneous rocks that result from lava solidifying above ground are classified as extrusive igneous rocks. These rocks cool quickly, leading to small mineral grains and a fine-grained texture. Examples include basalt and rhyolite.
Mantle rock is classified as ultramafic igneous rock.
Volcanic rocks are classified as extrusive igneous rocks, forming from the solidification of lava.
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Intrusive and Extrusive.
Igneous rocks are classified based on their composition and texture. Composition is determined by the minerals present, while texture refers to the size of the mineral grains in the rock. These classifications help geologists understand the conditions under which the rock formed.
They are rocks formed from magma that cools and crystallizes on the earth surface.