Properties of Gneiss lan Schist
ukuran gandum
medium kanggo coarse grained
medium kanggo nggoleki coarse grained
rengat
ora duwe aturan baku
conchoidal
porosity
banget kurang keropos
Highly keropos
kekuatan compressive
ora Sumadhiya
tartamtu gravitasi
2.5-2.7
2.5-2.9
transparan
tembus kanggo opaque
opaque
Kapadhetan
2.6-2.9 g / cm 3
2.8-2.9 g / cm 3
resistance
tahan panas, meksa tahan, ngeruk tahan, nyandhang tahan
impact tahan, meksa tahan, banyu tahan