无烟煤(anthracite、希臘語:ανθρακίτης,意为“类煤”,衍生于“木炭”的希腊语άνθραξ)[1],也稱為黑煤、硬煤(英語:black coal, hard coal),是一种坚硬、致密且高光泽的煤矿品种。在所有的煤品种中,变质作用的程度最高,具有高的熱含量和碳含量,以及最少的雜質。
Chandler, Alfred D. Anthracite coal and the beginnings of the industrial revolution in the United States. Business History Review. 1972, 46 (2): 141–181.
Hudson Coal Company. The Story of Anthracite. New York. 1932: 425. — Useful overview of the industry in the 20th century; fair-minded with an operators perspective
Report of the United states coal commission.... (5 vol in 3; 1925) Official US government investigation. online vol 1-2 (页面存档备份,存于互联网档案馆)
Tryon, Frederick Gale, and Joseph Henry Willits, eds. What the Coal Commission Found: An Authoritative Summary by the Staff (1925).
General policies committee of anthracite operators. The anthracite coal strike of 1922: A statement of its causes and underlying purposes (1923); Official statement by the operators. online (页面存档备份,存于互联网档案馆)