Properties of Pumice lan Minette
ukuran gandum
grained nggoleki
nggoleki kanggo coarse grained
tilas
putih, greenish putih utawa abu-abu
putih
porosity
Highly keropos
banget kurang keropos
luster
earthy
subvitreous kanggo kurang
kekuatan compressive
ora Sumadhiya
cleavage
sampurna
conchoidal
kateguhan
3
ora kasedhiya
tartamtu gravitasi
2.86
2.86-2.87
transparan
opaque
tembus kanggo opaque
Kapadhetan
0.25-0.3 g / cm 3
2.95-2.96 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
impact tahan, meksa tahan
tahan panas, impact tahan