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What is a glassy fine-graind extrusive rock?
obsidian
Texture would be most unlikely to occur in an extrusive igneous rock?
A coarse-grained texture is unlikely to occur in an extrusive igneous rock because it forms quickly at or near the surface, limiting the time for large mineral grains to grow. Instead, extrusive igneous rocks typically have fine-grained to glassy textures due to rapid cooling.
What type of rock is formed from the quick cooling of lava on the earth's surface?
The type of rock that is formed from the quick cooling of lava on the earth's surface is called extrusive igneous rock. This happens when lava cools and solidifies rapidly, resulting in fine-grained or glassy textures found in rocks such as basalt or obsidian.
What are the properties of extrusive rock?
Extrusive rocks are formed from magma that cools quickly on the Earth's surface, resulting in small or no crystals. They typically have a fine-grained texture and may contain gas bubbles. Examples of extrusive rocks include basalt and rhyolite.
What are igneous rocks formed at the earths surface called?
Igneous rocks formed at the Earth's surface are called extrusive igneous rocks. They form when magma cools and solidifies quickly on the Earth's surface, resulting in fine-grained or glassy textures. Examples include basalt and rhyolite.
How can you tell that scoria is an extrusive rock?
It is fine grained to glassy and contains vesicles.
What is a glassy grained extrusive rock?
Obsidian.
What is a glassy fine-graind extrusive rock?
obsidian
Is rhyolite fine-grained and extrusive rock?
Yes
Which the following is a fine grained light colored extrusive igneous rock?
fine grained extrusive rocks can contain Potassium and Plagioclase Feldspar, Quartz, Biotite, Amphibole, Pyroxene and Olivine. these are all the choices for every igneous rocks
Texture would be most unlikely to occur in an extrusive igneous rock?
A coarse-grained texture is unlikely to occur in an extrusive igneous rock because it forms quickly at or near the surface, limiting the time for large mineral grains to grow. Instead, extrusive igneous rocks typically have fine-grained to glassy textures due to rapid cooling.
What characteristics are used to classify igneous rocks?
Intrusive and extrusive factors of an igneous rock classify them. The other factors are if they are vesicular, coarse, fine grained, glassy, or very coarse
What is the texture of the rock andesite?
The texture of Andesite rock is fine-grained and it Extrusive plus it is an igneous rock .
Are river rocks porous?
No. It is a fine grained extrusive volcanic rock that is light in color. It is usually not porous.
What kind of texture does obsidian rock has?
Glassy, but I could be wrong. Glassy usually relates to a rock that doesn't have any visible particles (like fine-er than fine grained).
How do you identify a extrusive rock?
Extrusive rocks are typically fine-grained due to rapid cooling at or near the Earth's surface. They often have visible gas bubbles, known as vesicles, and may display a glassy texture such as obsidian. Some common types of extrusive rocks are basalt, andesite, and rhyolite.
What type of rock is formed from the quick cooling of lava on the earth's surface?
The type of rock that is formed from the quick cooling of lava on the earth's surface is called extrusive igneous rock. This happens when lava cools and solidifies rapidly, resulting in fine-grained or glassy textures found in rocks such as basalt or obsidian.
