Properties of Pumice lan Gossan
ukuran gandum
grained nggoleki
nggoleki grained medium
tilas
putih, greenish putih utawa abu-abu
putih kanggo werna abu-abu
porosity
Highly keropos
Highly keropos
kekuatan compressive
ora Sumadhiya
cleavage
sampurna
ora kasedhiya
kateguhan
3
ora kasedhiya
tartamtu gravitasi
2.86
2.0
Kapadhetan
0.25-0.3 g / cm 3
ora Sumadhiya
resistance
impact tahan, meksa tahan
tahan panas, impact tahan, meksa tahan