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