Properties of Schist lan Scoria
ukuran gandum
medium kanggo nggoleki coarse grained
grained nggoleki
rengat
conchoidal
conchoidal
porosity
Highly keropos
Highly keropos
luster
mengilap
subvitreous kanggo kurang
tartamtu gravitasi
2.5-2.9
ora Sumadhiya
Kapadhetan
2.8-2.9 g / cm 3
ora Sumadhiya
resistance
impact tahan, meksa tahan, banyu tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan