Properties of Pumice lan Comendite
ukuran gandum
grained nggoleki
grained medium
tilas
putih, greenish putih utawa abu-abu
bluish ireng
porosity
Highly keropos
Highly keropos
cleavage
sampurna
ora kasedhiya
tartamtu gravitasi
2.86
2.38
Kapadhetan
0.25-0.3 g / cm 3
ora Sumadhiya
kapasitas panas tartamtu
ora Sumadhiya
resistance
impact tahan, meksa tahan
tahan panas, impact tahan