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