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