Resources: Density, weight, and volume of materials ...
Density or weight (Imperial measure) Density or weight (Metric measure) Hazardous class: Source: comment Coal, Anthracite, Raw: Bulk: 2000 lbs. per cubic yard: 1190 kgs per cubic meter: Backyard: Iron ore, hematite: bulk: 4000-5000 lbs per cubic yard: 1810-2450 kg per cubic meter: Backyard: Iron ore, magnatite: bulk: 4700 lbs per cubic yard ...