Product: Pebble/ River stone
Color: White/ Green / Sky blue / Brown etc.
Common size: 1-2,2-4,4-6,6-8,8-15,15-32cm 0.5-1 1-2 2-4 4-6 6-8mm
Usage: Water filter
Package: 25/50 kg/ bag
Product: Pebble/ River stone
Color: White/ Green / Sky blue / Brown etc.
Common size: 1-2,2-4,4-6,6-8,8-15,15-32cm 0.5-1 1-2 2-4 4-6 6-8mm
Usage: Water filter
Package: 25/50 kg/ bag
Cobblestone is a kind of pure natural stone. It is taken from the gravel mountain produced by the ancient river bed uplift after crustal movement ten million years ago.
Specific gravity | 1.85g/cm3 | Hardness | 7.5 |
SiO2 | 98% | Bulk density | 1.85 |
Solubility of hydrochloric acid | 3.50% | Density | 2.66 |