Anthracite Mohs scale), its higher relative density of 1.3–1.4, and luster, which is often semi-metallic with a mildly brown reflection. It contains a high percentage of fixed carbon and a low percentage of volatile matter. It is also free from included soft or fibrous notches and does not soil the fingers when rubbed. Anthracitization is the transformation of bituminous coal into anthracite. The moisture content of fresh-mined anthracite generally is less than 15 percent. The heat content of anthracite ranges from 22 to 28 million Btu per short ton (26 to 33 MJ/kg) on a moist, mineral-matter-free basis. The heat content
Anthracite Fields dissonances in the vocal parts are whole step apart. Then in measure 30 the last syllable of “flowers” ends on a G. And then the song changes. In measure 34, rather than the vocalists resolving to the tonic through a 4th or a 5th they resolve in sixteenth tones a whole step apart. In measure 52, everyone sings staccato eighth notes and the dissonances are either are primarily a whole step apart, or a 4th and 5th apart. Anthracite Fields Anthracite Fields is an oratorio for choir and chamber ensemble by the American composer Julia Wolfe. The work was commissioned