Properties of Rhyodacite lan Pumice
ukuran gandum
grained nggoleki
grained nggoleki
tilas
ireng
putih, greenish putih utawa abu-abu
porosity
kurang keropos
Highly keropos
luster
greasy kanggo kurang
earthy
cleavage
ora kasedhiya
sampurna
tartamtu gravitasi
2.34-2.40
2.86
Kapadhetan
ora Sumadhiya
0.25-0.3 g / cm 3
resistance
tahan panas
impact tahan, meksa tahan