Red and black natural volcanic pumice stone for cleaning feet!!
Material: Natural Volcano Stone
Shape: LAVA with hole;No pointed particle shape, small resistance to water flow, not easily blocked, uniform distribution of water and air, rough surface
Color: Natural Red/black
Size:4*7*10cm 5*7*10cm
Application: cleaing feet
SiO2 | CaO | MgO | Fe2O3 | Al2O3 | K2O | Na2O | FeO | CL-- | L.O.L |
52.54% | 8.57% | 2.49% | 10.00% | 17.00% | 2.50% | 2.93% | 1.36% | 0.01% | 4.95% |
Bulk Density kg/m3 | Loose bulk density kg/m3 | Moisture % | Heat conductivity coefficient w/(m.k) | Water absorption % | Cylinder pressure strength Mpa | softening coefficient |
450-600 | 540 | <1 | 0.325 | 21 | 2.216 | 0.84 |