Properties of Trachyte lan Gneiss
ukuran gandum
grained nggoleki
medium kanggo coarse grained
rengat
ora kasedhiya
ora duwe aturan baku
porosity
kurang keropos
banget kurang keropos
cleavage
ora kasedhiya
miskin
kateguhan
ora kasedhiya
1.2
tartamtu gravitasi
2.7
2.5-2.7
transparan
opaque
tembus kanggo opaque
Kapadhetan
2.43-2.45 g / cm 3
2.6-2.9 g / cm 3
resistance
tahan panas, impact tahan, nyandhang tahan
tahan panas, meksa tahan, ngeruk tahan, nyandhang tahan