Glossary of Mining Terms SEC
Anthracite - A hard, black coal containing a high percentage of fixed carbon and a low percentage of volatile matter.7275 mineral grinding mills limited pakistan. Anticline - An arch or fold in layers of rock shaped like the crest of a wave. Apex - The top or terminal edge of a vein on surface or its nearest point to the surface. Ash - The inorganic residue remaining after ignition of coal.