Igneous rocks are generally classified first on the basis of their formation (and therefore their texture) as intrusive or extrusive. Intrusive rocks are solidified from magma under the surface resulting in a visible crystalline texture, and extrusive igneous rocks are solidified from lava at or near the surface, resulting in a small or nearly invisible crystalline texture.
Igneous rock can additionally be classified by general chemistry composition as felsic, intermediate, mafic, and ultramafic. Felsic rocks are higher in silica and aluminum. Maficrocks are higher in magnesium and iron.
Examples of igneous rock include:
Words used to describe igneous rock or igneous rock typesinclude: ultramafic, mafic, intermediate, felsic, aphanitic, porphyritic, phaneritic, extrusive, intrusive, vesicular, glassy, coarse grained, fine grained, acidic, basic.
Examples of igneous rock include:
Gabbro.
Igneous, examples include Granite and Basalt
An igneous rock is formed when magma cools and hardens. Some examples of igneous rocks are pumice and obsidian.
Examples of igneous rocks are pumice, obsidian, basalt, and rhyolite.
Normally, extrusive igneous rocks exhibit an aphanitic texture. Examples would be basalt and rhyolite.
Igneous rocks are formed from cooling lava. Some examples are obsidian And basalt.
Examples of igneous rock include:pumicebasaltgabbrodioritegraniterhyoliteobsidianscoria
some examples of igneous rocks are granite,basalt,and rhyolite and driolite
Gabbro.
Basalt and rhyolite are examples of fine-grained igneous rocks.
Basalt and rhyolite are examples of fine-grained igneous rocks.
Some other examples are Andesite, Basalt, Rhyolite, and Scoria.
Igneous intrusive
Examples of igneous rocks are pumice, obsidian, basalt, and rhyolite.
Igneous Rocks
Actually no Igneous Rock Is Obsedian
Igneous, examples include Granite and Basalt