Anthracite, which is metamorphosed bituminous coal.
Anthracite is a very hard rock that burns with high heat and little smoke. It is a metamorphic rock formed from coal through intense pressure and heat. It is known for its efficiency as a fuel source due to its high carbon content.
The rock you are referring to is anthracite coal. It is a type of coal that is very dense, high in carbon, and burns with a clean, hot flame. Anthracite coal is formed from the metamorphism of sedimentary rock, such as bituminous coal, over millions of years.
Anthracite is a metamorphic rock formed from coal. Through heat and pressure, coal is transformed into anthracite, which is a hard, dark rock with high carbon content. It has a lustrous appearance and is often used as a fuel source.
Anthracite is a metamorphic rock. Anthracite is formed when an organic sedimentary rock - coal - is compressed and heated in the ground.
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.
Anthracite is a very hard rock that burns with high heat and little smoke. It is a metamorphic rock formed from coal through intense pressure and heat. It is known for its efficiency as a fuel source due to its high carbon content.
Anthracite coal is a type of metamorphic rock that burns with a high heat and little smoke due to its high carbon content. It is very hard and often used in heating applications where clean and efficient burning is desired.
anthracite
anthracite
The rock you are referring to is anthracite coal. It is a type of coal that is very dense, high in carbon, and burns with a clean, hot flame. Anthracite coal is formed from the metamorphism of sedimentary rock, such as bituminous coal, over millions of years.
shale
Anthracite is a metamorphic rock formed from coal. Through heat and pressure, coal is transformed into anthracite, which is a hard, dark rock with high carbon content. It has a lustrous appearance and is often used as a fuel source.
coal pollutes the air by smoke and it burns easily plus cows eat grass
coal is metamorphic
Bituminous coal is sedimentary! Bituminous coal is sedimentary!
anthracite coal is the metamorphic form of bituminous coal which is the sedimentary form. in other words it has been heated under pressure.
Anthracite is a metamorphic rock. Anthracite is formed when an organic sedimentary rock - coal - is compressed and heated in the ground.