Appendix #5: Estimated Material Densities

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The following numbers are based on bank density ie. before any swell and void. As payloads in Spry are based on Source Quantity, the following numbers should provide an estimation where on-site numbers are unavailable.

Process Type Estimated Density (tonnes/m3)
Anthracite 1.36-1.55
Bituminous/Black Coal 1.28-1.35
Lignite/Brown Coal 1.25
Copper Ore 2.26
Iron Ore Hematite 3.86-5.16
Iron Ore Taconite 2.40-3.20
Sandstone 2.30-2.45
Granite 2.67

Speight, J. 2005. Handbook of Coal Analysis
Lowrie, R. 2002. SME Mining Reference Handbook