
탄화 정도가 가장 높고 단단하며, 연소 시 연기와 불꽃이 거의 없는 석탄의 일종.
A hard, compact variety of coal that has a submetallic luster, contains a high percentage of fixed carbon, and burns with little flame and smoke.
예문:
"Anthracite is often used for residential heating because it burns cleanly and provides consistent heat."
"The geological pressure required to form anthracite is much higher than that for bituminous coal."
"Pennsylvania is well-known for its vast deposits of high-quality anthracite."