What is anthracite and how it is obtained
Answers
Answer:
Anthracite is the most metamorphosed type of coal (but still represents low-grade metamorphism), in which the carbon content is between 86% and 98%. The term is applied to those varieties of coal which do not give off tarry or other hydrocarbon vapours when heated below their point of ignition.
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Answer:
Anthracite:
The highest rank of coal. It is a hard, brittle, and black lustrous coal, often referred to as hard coal, containing a high percentage of fixed carbon and a low percentage of volatile matter.
Formation:
Anthracite coal forms when bituminous coal undergoes very low grade metamorphism, accompanied by structural deformation. The fixed carbon content under these conditions reaches 85-95%. If anthracite is metamorphosed further it turns into graphite.