Properties of Pumice lan Pegmatite
ukuran gandum
grained nggoleki
medium kanggo coarse grained
tilas
putih, greenish putih utawa abu-abu
putih
porosity
Highly keropos
kurang keropos
luster
earthy
grainy, mutiyara lan vitreous
cleavage
sampurna
sampurna
tartamtu gravitasi
2.86
2.6-2.63
transparan
opaque
tembus kanggo opaque
Kapadhetan
0.25-0.3 g / cm 3
2.6-2.65 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
impact tahan, meksa tahan
tahan panas, impact tahan, meksa tahan