Chemical Properties
(%) Al₂O₃	8.4
(%) MgO	87.0
(%) SiO₂	1.8
(%) Fe₂O₃	0.6

Grain Size Distribution

5-8mm (-8+5mm)

3-5mm (-5+3mm)

1-3mm (-3+1mm)

0-0.5mm (-1mm)