Properties of Greywacke lan Pantellerite
ukuran gandum
sudut lan nggoleki
grained nggoleki
rengat
conchoidal
sub-conchoidal
porosity
Highly keropos
kurang keropos
cleavage
sampurna
conchoidal
tartamtu gravitasi
2.2-2.8
ora Sumadhiya
transparan
opaque
tembus kanggo opaque
Kapadhetan
2.6-2.61 g / cm 3
ora Sumadhiya
resistance
tahan panas, impact tahan, meksa tahan
tahan panas