Specific Gravity
2.50

Bulk Density
75 to 80 lbs/cu.ft

Effective Size
Ranges from 0.30 to 1.10

Coefficient of Uniformity
Ranges from 1.45 to 1.80

Estimated Sphericity
Approximately 0.40

Porosity
Typically 48%

Shape
Angular to sub-angular

Permeability
VF25 typically 4.0 X 10-1 cm/sec

Physical Composition
Amorphous soda-lime glass

Typical Chemical Composition
SiO2........73%
Na2O.......14%
CaO.........10%
MgO........<1%
Al2O3......<1%
SO3.........<1%

Softening Point 724° C
                   1335° F