cinder

Rake out the cinders before you start a new fire.

a fireplace full of glowing red cinders

A laborer takes a rest on a cinder dumpsite in Changzhi, China.

This treating method can remove the sulfur and incerase the percent of iron and resolve the trouble that pyrite cinder is difficult to desulfurate.

This material is variously termed ash, clinker, cinders or slag.

The arsenolite cinders were treated by the processes of oxidizing roasting-pyrolusite pulp absorption,magnetizing roasting-magnetic separation and acid leaching.