How much is the density of corundum?

Density is divided into two kinds of Brown Corundum is called, one corundum bulk density, particle density, the second is Brown Corundums.

Bulk density of 1.53 ~ 1.99g/cm3, abrasives and abrasive particle bulk density, particle size composition, species, particle shape and other factors are related, in general, coarse-grained than fine-grained abrasive abrasive bulk density, particle size of the abrasive mix Bulk density is greater than a single particle density.

Particle density of 3.95 ~ 4.0/cm3, the silicon carbide abrasive particle density refers to the unit volume (excluding the volume of open porosity) contained within the abrasive mass