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Peat (not much of a rock).
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What is anthracite a type of?
Coal. Anthracite is a very hard very clean burning metamorphic type of coal.
What are examples of coal?
Peat, Lignite and Anthracite.
What is the most expensive type of coal?
Anthracite is the most metamorphosed type of coal (but still represents low-grade using only the more expensive anthracite coal in its passenger locomotives,
One gallon of coal weighs?
density of coal is Coal, Anthracite, solid 1506 kg/cu.m Coal, Anthracite, broken 1105 Coal, Bituminous, solid 1346 Coal, Bituminous, broken 833 using a median value of 900 kg/m3 1 gal (US) = 0.00378 m3 weight of 1 gal = 900 x 0.00378 = 3.407 kg or 7.51 pounds
Short note on different varieties of coal?
There are four types of coal as under:Lignite coalUsed almost exclusively for electric power generation lignite is a young type of coal. Lignite is brownish black, has a high moisture content (up to 45 %), and a high suphur content. Lignite is more like soil than a rock and tends to disintegrate when exposed to the weather. Lignite is also called brown coal. Lignite has a colorific value of less than 5 kw/kg approximately.Subbituminous coalSubbituminous coal is also called black lignite. Subbituminous coal black and contains 20-30 % moisture. Subbituminous coal is used for generating electricity and space heating. Subbitumnious coal has calorific values ranging from 5 - 6.8 kW/kG approximately.Bituminous coalBituminous coal is a soft, dense, black coal. Bituminous coal often has bands of bright and dull material in it. Bituminous coal is the most common coal and has a moisture content less than 20 %. Bituminous coal is used for generating electricity, making coke, and space heating.Bituminous coal has calorific values ranging from 6.8 - 9 kW/kG approximately.Anthracite coalOften referred to as hard coal, anthracite is hard, black and lustrous. Anthracite is low in suplhur and high in carbon. It is the highest rank of coal. moisture content generally is less than 15 %.Anthracite has a calorfific values of around 9 kW/kG or above.
What metamorphic rock is commonly known as coal?
Anthracite is a metamorphic rock commonly called coal ,whose protolith or parent rock is bituminous coal.
Is anthracite coal a sedimentary rock?
Yes, anthracite coal is a type of coal that is considered a metamorphic rock, not a sedimentary rock. It forms from the metamorphism of bituminous coal at high pressures and temperatures.
What metamorphic rock does anthracite coal turn in to?
Anthracite coal is already a metamorphic rock.
Is Anthracite coal igneous metamorphic or sedimentary?
Anthracite Coal is a metamorphic rock.
What type of rock is anthracite coal?
Metamorphic rock
What is the texture of Anthracite rock?
Anthracite is a form of coal. It is hard black and shiny.
Metamorphic rock formed from coal?
anthracite
Is anthracite a sedimentary rock?
No it is not but bituminous coal is
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.
What metamorphism does coal produce?
The metamorphic rock anthracite is metamorphosed coal.
Why is coal not considered to be a rock?
Coal is considered a sedimentary rock, except for Anthracite which is considered a metamorphic rock.
Is coal a metamorphic rock?
Coal when subject to mild metamorphism turns into Anthracite, in which the carbon content is between 92% and 98%. If squeezed and heated still further, the coal will transform into graphite and of cause if the taken to extremes diamond will be produced, but that would require the coal to be taken deep into the earth's mantle.
