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Coal is a sedimentary rock. However, harder forms of coal, because of exposure to elevated temperature and pressure, are metamorphic rock.
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Is lignite a igneous rock?
No, lignite is not an igneous rock. Lignite is a type of coal formed from compressed peat. Igneous rocks are formed through the solidification of molten magma or lava.
When lava cools down does it turn into coal?
No, coal is not an igneous rock at all. Coal is made from sedimentary rock that is squeezed under the ground by great pressure.
What is a rock made from harden molten rock?
A rock that is formed from hardened molten rock is called an igneous rock. Igneous rocks can be formed from the cooling and solidifying of magma or lava. Examples of igneous rocks include basalt, granite, and obsidian.
Is anthracite a sedimentary or a igneous rock?
Anthracite is a metamorphic rock, not a sedimentary or igneous rock. It forms from the metamorphism of bituminous coal, under high pressure and temperature conditions deep within the Earth's crust.
Is anthracite an igneous metamorphic or sedimentary?
Anthracite is a metamorphic rock. Anthracite is formed when an organic sedimentary rock - coal - is compressed and heated in the ground.
Is lignite a igneous rock?
No, lignite is not an igneous rock. Lignite is a type of coal formed from compressed peat. Igneous rocks are formed through the solidification of molten magma or lava.
Is coal an extrusive igneous rock?
Coal is not a intrusive igneous rock but is instead a form of Carbon. The carbon is heated and pressured from low grade metamorphism. Coal is formed mostly from marshes or swamps millions of years ago, think of an environment like the everglades in Florida. A igneous rock would be something like a gabbro or granite.
What example of a extrusive igneous rock is?
coal
Is coal extrusive igneous rock?
No, coal is a sedimentary rock composed mostly of the remains of ancient vegetation (except for anthracite coal which is a metamorphic rock, see image above)..
When lava cools down does it turn into coal?
No, coal is not an igneous rock at all. Coal is made from sedimentary rock that is squeezed under the ground by great pressure.
What is a rock made from harden molten rock?
A rock that is formed from hardened molten rock is called an igneous rock. Igneous rocks can be formed from the cooling and solidifying of magma or lava. Examples of igneous rocks include basalt, granite, and obsidian.
Is coal an igneous rock sedimentary rock or metamorphic rock?
Bituminous coal is consided a sedimentary rock. Anthracite coal is bituminous coal that has been metamorphosed by great pressure and heat and is considered a metamorphic rock.
Is bituminous coal igneous sedimentary or metamorphic?
Bituminous coal is sedimentary! Bituminous coal is sedimentary!
Is Anthracite coal igneous metamorphic or sedimentary?
Anthracite coal is a type of metamorphic rock. It forms from the transformation of bituminous coal under increased temperature and pressure over time.
What type of rock is coal?
Coal is a type of organic sedimentary rock formed from dead plants.
Is coal mafic or felsic?
Coal is neither mafic nor felsic, as these terms are typically used to describe igneous rocks based on their silica content. Coal is a sedimentary rock that forms from the accumulation and burial of plant material.
Is graphite igneous sedimentary or metamorphic?
Graphite is a metamorphic rock. It is formed from the metamorphism of organic sedimentary rocks, such as coal, under high temperature and pressure.
