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While of biochemical origin, coal is not considered an igneous rock, but rather a sedimentary one, due to its process of formation wherein dead and decaying organic matter (such as animal and plant matter, typing being found in bogs or swamps) was compressed into rock form over a period of several hundred million years.
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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.
What is origin of gabbro?
intrusive igneous rock
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
Which is the origin of all igneous rock?
Magma or lava.
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.
Chalk and coal are examples of a kind of sedimentary rock called?
Chalk and coal are examples of a kind of sedimentary rock called biochemical sedimentary rock. Biochemical sedimentary rocks form from the accumulation and lithification of organic remains, such as shells and plant material.
What type of rock contains no fossils?
Igneous rocks and most metamorphic rocks, of an igneous origin.
How the origin of an igneous rock affects its texture?
How fast it cools
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 the origin of diamonds rock or coal?
The origin of diamonds is rock, specifically kimberlite and lamproite volcanic rocks that form deep within the Earth's mantle. Coal is a completely different type of sedimentary rock formed from plant material.
