Properties of Porphyry lan Scoria
ukuran gandum
grained nggoleki
grained nggoleki
rengat
ora duwe aturan baku
conchoidal
porosity
kurang keropos
Highly keropos
luster
kurang
subvitreous kanggo kurang
tartamtu gravitasi
2.5-4
ora Sumadhiya
transparan
tembus kanggo opaque
opaque
Kapadhetan
2.5-2.52 g / cm 3
ora Sumadhiya
resistance
tahan panas, impact tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan