Properties of Pumice lan Websterite
ukuran gandum
grained nggoleki
coarse grained
tilas
putih, greenish putih utawa abu-abu
putih, greenish putih utawa abu-abu
porosity
Highly keropos
kurang keropos
luster
earthy
kurang kanggo vitreous kanggo submetallic
kekuatan compressive
ora Sumadhiya
cleavage
sampurna
ora duwe aturan baku
kateguhan
3
ora kasedhiya
tartamtu gravitasi
2.86
3.2-3.5
Kapadhetan
0.25-0.3 g / cm 3
3.1-3.6 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
impact tahan, meksa tahan
impact tahan, meksa tahan, nyandhang tahan