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Small grained texture from small crystal size.
Christop Hodkiewicz
Extrusive rocks like basalt have a fine-grained texture due to their quick cooling at the Earth's surface. This rapid cooling doesn't allow time for large mineral crystals to form, resulting in a more uniform, fine-grained appearance.
Wiki User
∙ 9y agoSmall grained texture from small crystal size.
Wiki User
∙ 12y agoA fine crystalline texture technically known as an Aphanitic texture.
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What is most common type of extrusive rock?
Probably limestone. :)
What type of type rock is basalt?
Basalt is an igneous rock that forms from the rapid cooling of lava. It is fine-grained and typically dark in color, composed mainly of mafic minerals like pyroxene and plagioclase feldspar. Basalt is commonly found in oceanic crust and volcanic areas.
If a lava flow at Earth's surface had a basaltic composition what rock type would the flow likely turn into upon solidification?
The lava flow would likely solidify into basalt rock, which is a fine-grained igneous rock with a composition similar to the original basaltic lava.
You find a volcanic rock that is fairly smooth and only has a few small holes made when gas and water vapor escaped as the rock cooled you know that the rock can be classified as?
The volcanic rock can be classified as basalt. Basalt is a fine-grained igneous rock that forms from the solidification of lava flows. The smooth texture and small holes, known as vesicles, are characteristic features of basalt.
What rock is a volcano made from?
There are dozens of subtly different varieties of volcanic rock. The most basic types of rock by composition are basalt, andesite, and rhyolite. By texture and how they are placed, rock types may include cooled lava, pumice, scoria, and tuff.
Is basalt the most common intrusive rock?
No, basalt is actually a type of extrusive igneous rock. The most common intrusive rock is granite.
What is the most common type of extrusive rock?
BASALT
What type of type rock is basalt?
Basalt is an igneous rock that forms from the rapid cooling of lava. It is fine-grained and typically dark in color, composed mainly of mafic minerals like pyroxene and plagioclase feldspar. Basalt is commonly found in oceanic crust and volcanic areas.
What type of rock is a smooth black rock?
A smooth, black rock is likely to be basalt. Basalt is an extrusive igneous rock that is commonly dark in color and has a fine-grained texture, giving it a smooth appearance.
Which type of rock is formed as a result of lava cooling quickly?
Igneous rock, specifically basalt, is formed when lava cools quickly. Basalt is characterized by its fine-grained texture due to rapid cooling at the Earth's surface.
What type of texture does extrusive rock have?
coarser grained
What type of texture does extrusive rock?
coarser grained
What is most common type of extrusive rock?
Probably limestone. :)
What type of igneous rock that is made from lava?
Cooling lava produces extrusive igneous rock, such as basalt.
Is basalt a rock or mineral?
Basalt is a type of rock, specifically an extrusive igneous rock that forms from solidified lava flows. It is composed mainly of minerals such as feldspar and pyroxene.
What type of extrusive rock would form at a volcano?
Extrusive rock of an igneous origin, formed from the cooling and solidification of lava. Typical examples include basalt, andesite and rhyolite.
What is a igneous rock formed from magma?
basalt
