Chemica Composition and Physical Properties
SiO2 |
>99.31% |
Al2O3 |
<0.36% |
Fe2O3 |
<0.018% |
Specific weight |
>2.66g/cm3 |
hardness mohs |
>8 |
Porosity |
<0.38% |
Actual abrasion rate of pebble |
<1.35 |
Appearance of pebble |
round(ellipse) |
Color of product after burning |
gray and white
|