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Home  >>  Customers  >>  Coal  >>  Glossary  >>  Properties of Materials

Glossary of Terms

Properties of Various Materials

Material Loose
Density
(lb/ft 3 ) 		Angle of
Repose
(degrees)
Ash 35 - 40 40
Coal, anthracite 60 35
Coal, bituminous, sized 45 - 55 35
Coal, lignite 40 - 45 38
Coke, loose 23 - 35 30 - 44
Coke, breeze 25 - 34 30 - 45
Coke, petroleum 35 - 40 . . .
Gravel, dry 90 - 110 40
Gypsum, screened 70 - 80 30 - 40
Iron ore 145 35
Limestone, crushed 95 - 100 38
Sand, dry 90 - 100 35