Properties of Pumice lan Norite
ukuran gandum
grained nggoleki
coarse grained
tilas
putih, greenish putih utawa abu-abu
ireng
porosity
Highly keropos
Highly keropos
luster
earthy
ora kasedhiya
cleavage
sampurna
ora kasedhiya
tartamtu gravitasi
2.86
2.86-2.87
Kapadhetan
0.25-0.3 g / cm 3
2.7-3.3 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
impact tahan, meksa tahan
impact tahan, meksa tahan, nyandhang tahan