Properties of Pumice lan Tuff
ukuran gandum
grained nggoleki
grained nggoleki
tilas
putih, greenish putih utawa abu-abu
putih
porosity
Highly keropos
Highly keropos
luster
earthy
vitreous kanggo kurang
cleavage
sampurna
ora kasedhiya
kateguhan
3
ora kasedhiya
tartamtu gravitasi
2.86
2.73
Kapadhetan
0.25-0.3 g / cm 3
1-1.8 g / cm 3
resistance
impact tahan, meksa tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan