Properties of Pumice lan Basanite
ukuran gandum
grained nggoleki
grained nggoleki
rengat
planar
ora rata, splintery utawa conchoidal
tilas
putih, greenish putih utawa abu-abu
putih
porosity
Highly keropos
Highly keropos
luster
earthy
waxy lan kurang
kekuatan compressive
ora Sumadhiya
cleavage
sampurna
non-ana
tartamtu gravitasi
2.86
2.5-2.8
transparan
opaque
tembus kanggo opaque
Kapadhetan
0.25-0.3 g / cm 3
2.7 g / cm 3
resistance
impact tahan, meksa tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan