Properties of Scoria lan Pantellerite
ukuran gandum
grained nggoleki
grained nggoleki
rengat
conchoidal
sub-conchoidal
porosity
Highly keropos
kurang keropos
luster
subvitreous kanggo kurang
earthy
cleavage
sampurna
conchoidal
tartamtu gravitasi
ora Sumadhiya
ora Sumadhiya
transparan
opaque
tembus kanggo opaque
Kapadhetan
ora Sumadhiya
ora Sumadhiya
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas