Properties of Rhyodacite lan Itacolumite
ukuran gandum
grained nggoleki
coarse utawa nggoleki
rengat
conchoidal
conchoidal
porosity
kurang keropos
Highly keropos
luster
greasy kanggo kurang
kurang
cleavage
ora kasedhiya
sampurna
tartamtu gravitasi
2.34-2.40
2.2-2.8
Kapadhetan
ora Sumadhiya
2.2-2.8 g / cm 3
resistance
tahan panas
tahan panas, impact tahan, meksa tahan