metamorphism
In the US, the anthracite coal seam exists primarily in Eastern Pennsylvania. Across the Appalachian Mountains begins Bituminous coal in the geological area called the Pittsburgh Coal Seam-- - an area extending from Western Pennsylvania, Western West Virginia, Ohio, Kentucky, and Indiana. Metamorphosis transforms anthracite coal, a hard coal, to Bituminous coal, a soft coal.
anthracite coal is the metamorphic form of bituminous coal which is the sedimentary form. in other words it has been heated under pressure.
maybe
Anthracite coal is harder than bituminous coal. Anthracite coal has a relative hardness of 1.3 to 1.4. Bituminous coal has a hardness of less than one.
2.2
In the US, the anthracite coal seam exists primarily in Eastern Pennsylvania. Across the Appalachian Mountains begins Bituminous coal in the geological area called the Pittsburgh Coal Seam-- - an area extending from Western Pennsylvania, Western West Virginia, Ohio, Kentucky, and Indiana. Metamorphosis transforms anthracite coal, a hard coal, to Bituminous coal, a soft coal.
anthracite coal is the metamorphic form of bituminous coal which is the sedimentary form. in other words it has been heated under pressure.
anthracite coal is the metamorphic form of bituminous coal which is the sedimentary form. in other words it has been heated under pressure.
wood-peat-lignite-subbituminous-bituminous-anthracite The wood is converted to anthracite (coal) through various stages. lignite, subbituminous,bituminous,anthracite are the major coal types formed these are ranked based on the presence of carbon ,hydrogen and oxygen content
anthracite - northeastern pa bituminous- western pa
maybe
Anthracite coal is harder than bituminous coal. Anthracite coal has a relative hardness of 1.3 to 1.4. Bituminous coal has a hardness of less than one.
Anthracite, a variety of coal, is formed from the metamorphosis of bituminous coal through natural processes of heat and pressure deep underground.
2.2
lignite, sub-bituminous, bituminous and anthracite.
lignite, sub-bituminous, bituminous and anthracite.
No it is not but bituminous coal is