Properties of Variolite lan Pumice
ukuran gandum
ora ditrapake
grained nggoleki
tilas
putih kanggo werna abu-abu
putih, greenish putih utawa abu-abu
porosity
kurang keropos
Highly keropos
luster
ora kasedhiya
earthy
cleavage
ora kasedhiya
sampurna
tartamtu gravitasi
2.8-3
2.86
Kapadhetan
2.9-3.1 g / cm 3
0.25-0.3 g / cm 3
resistance
tahan panas, meksa tahan, nyandhang tahan
impact tahan, meksa tahan