Products of fire, incineration or combustion

The solid remains of fires, such as:
Ash (analytical chemistry), the compounds that remain after a scientific sample is burned; commonly reported as a percentage on pet food labels
 
Bottom ash, products of coal combustion

 
Cigar ash, the ash produced when a cigar is smoked

 
Fly ash, product of coal combustion

 
Incinerator bottom ash, a form of ash produced in incinerators

 
Vibhuti, the ash of cow dung and several other substances, used in Hindu rituals

 
Wood ash, products of wood combustion

 
Ashes or remains, dried bone fragments left from cremation