Amalahle eKhabhoni aPhakamileyo aQalcined Anthracite
Umxholo wothuthu ophantsi wecalcined anthraciteinciphisa intsalela yenkunkuma eveliswayo ngexesha lenkqubo yokutsha, inciphisa impembelelo kokusingqongileyo, kwaye inciphisa neendleko zokunxiba nokugcina izixhobo zokusebenza. I-volatility ephantsi iqinisekisa ukuzinza kunye nokukhuseleka kokutsha, okwenza inkqubo yokutsha ilawuleke ngakumbi kwaye ikhusele ngokufanelekileyo iingozi ezinokuthi zikhuseleke ezibangelwa ukuguquguquka okukhulu.