Properties of Pumice lan Rhyolite
ukuran gandum
grained nggoleki
gedhe lan coarse grained
rengat
planar
sub-conchoidal
tilas
putih, greenish putih utawa abu-abu
wernane
porosity
Highly keropos
Highly keropos
cleavage
sampurna
ora kasedhiya
tartamtu gravitasi
2.86
2.65-2.67
Kapadhetan
0.25-0.3 g / cm 3
2.4-2.6 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
impact tahan, meksa tahan
tahan panas, nyandhang tahan