Anthracite latter in two or three sizes, all three being above in (38 mm) size on round-hole screens. High grade (HG) and ultra high grade (UHG) anthracite are the highest grades of anthracite coal. They are the purest forms of coal, having the highest degree of coalification, the highest carbon count and energy content and the fewest impurities (moisture, ash and volatiles). High grade and ultra high grade anthracite are harder than standard grade anthracite, and have a higher relative density. An example of a chemical formula for high-grade anthracite would be CHONS, representing 94% carbon. UHG anthracite typically has a
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