Properties of Pumice lan Breccia
ukuran gandum
grained nggoleki
medium kanggo coarse grained
tilas
putih, greenish putih utawa abu-abu
putih
porosity
Highly keropos
kurang keropos
luster
earthy
kurang kanggo pearly
kekuatan compressive
ora Sumadhiya
cleavage
sampurna
non-ana
kateguhan
3
ora kasedhiya
tartamtu gravitasi
2.86
2.86-2.87
Kapadhetan
0.25-0.3 g / cm 3
0 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
impact tahan, meksa tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan